1xBit Mobile App for Android & iOS and Mobile Website Version 2026

Content

I had a moment where interacting with the bot got me reconnected to live support when I wasn’t expecting it. It’s a little glitchy, so handle with care if you don’t want to start another conversation by accident. One of the highlights here is the free spins bonus round, which kicks off with 10 free spins when you land three or more scatter symbols.

Suitable for experienced cryptocurrency users comfortable with offshore licensing. UK players prioritising regulatory protection, GamStop integration, or traditional payment methods should choose UKGC-licensed operators instead. Self-exclusion requests process through customer support, requiring email confirmation and manual account closure. This process lacks the immediacy of UKGC operator systems, potentially allowing continued play during processing periods.

1xBet’s mobile application brings you a seamless convergence of sports betting and online casino gaming, offering a one-stop-shop for all your entertainment needs. These popular cryptocurrencies cater to diverse player preferences, offering seamless deposits and withdrawals without personal banking details. Accepted currencies include BTC, ETH, DOGE, XRP, LTC, TRX, BCH, and USDT, guaranteeing compatibility with most crypto wallets. With no delays and a strong emphasis on privacy, 1xBit Casino ensures a hassle-free, secure gaming experience. 1xBit Casino is a Bitcoin-friendly online casino featuring an exciting collection of games for players. These include lottery games, slots, climb to victory, dice games, card games, table games, and live casino games.

To make sure you stay on top of every bonus offer regularly check the Bonuses section on the website. Every customer is given points for every bet they make on the site, regardless of the outcome. The cashback is acquired at the rate of 10$ for every 500 bonus points you accumulate.

Despite having one of the largest online casino game collections, 1xBit is not without competition. We’ve compiled a list of sites that match 1xBit in quality to expand your options for your next gaming platform. I had little-to-no worries with payments, as the cryptocurrency options turned out to be fast and reliable. Even when I ran into challenges, the customer service team was kind enough to deal with them.

Things like bet insurances, jackpots, loyalty points and daily bets, all of which we will talk about now. The cash-out option helps you to trade your bet before the official time of a game is over. The option, therefore, assists you to evade a potential loss by selling the stake at a specific price determined by the odd at the time of trading. Well, you will not get the actual amount of money you wished to get when placing them, but you will save some coins from the drain. Notably is the page for sports since it is almost identical to desktop version in terms of organization and layout. To access types of sports, you only require to scroll the menu and choose one to see statistics, events, and odds like in the case of the desktop version.

All payouts were processed smoothly and quickly, with no delays or friction. Even after bet limits were applied, our crypto withdrawals remained unrestricted. The casino setup still benefits from wide provider variety, easy category browsing, and fast access to both slot and live dealer content. It is more practical than premium, but there is enough volume here for most casino players to find what they want. The site publicly promotes 50+ sports, 1,000+ daily events, integrated live betting, and 15+ esports titles with specialized markets. For bettors who like niche leagues, alt markets, and full event menus, it still has real value.

The bonus package is hefty, but it’s a bit of a marathon to get through all the terms 1Win. Still, if you’re looking to stick around and play often, there’s value here. A selection of games from multiple game providers have been checked and NO fake games have been found. Tax obligations for winnings from the 1xBit app depend on your country of residence. It is advisable to consult with a tax professional or check the tax laws in your country to ensure compliance with any reporting or tax payment requirements. Each bonus has its terms and wagering requirements, but the rewards?

Thanks to this licensing setup, 1xBit can offer its services in different parts of the world without putting users through strict ID checks. Since the platform runs exclusively on cryptocurrency, users can enjoy full access even in areas with limited fiat payment options. However, local internet laws or digital restrictions may affect availability in specific territories. This staggered structure rewards loyal users and allows players to unlock increasingly larger bonuses over time. 1xbit is a crypto casino and sportsbook that only accepts cryptocurrencies and does not accept any fiat currency payments. The cryptocurrencies accepted by this site include Bitcoin, Bitcoin Cash, Ethereum, Litecoin, Tether and Dogecoin.

1Xbit Casino rewards regular wagering through an eight-level VIP Cashback scheme that automatically returns a percentage of net losses as players climb the tiers. Practical calculations demonstrate realistic scenarios for UK players. Depositing 0.1 BTC (approximately £4,000) as a first deposit triggers a 0.1 BTC bonus, doubling the playing balance to 0.2 BTC. Wagering requirements typically range between 35x and 40x the bonus amount, meaning players must place bets totalling 3.5-4 BTC before withdrawing bonus funds. Tools let you set limits on time and deposits, or even remove yourself from the game, so you can stay in control of your habits. Our support services are available 24/7 and can help you in Canada if you need it.

The desktop website user interface layout is quite similar to a number of other well-known betting brands, which we aren’t going to name right now for obvious reasons. Nevertheless, this is by no means a negative thing, the platform 1xBit runs on has proven itself to be stable and user-friendly. Even though you are likely familiar with most things here – let’s still take a quick look around.

Valuable features, including a blog, make 1xBit Casino a thoroughly engaging gaming milieu for players. While many crypto casinos limit users to one or two tokens, 1xBit takes a fundamentally different approach — giving players full control over how they engage with the platform. Whether you’re depositing with Bitcoin, betting with stablecoins, or withdrawing in a privacy coin like Monero, 1xBit’s infrastructure is designed to support your preferences, not limit them. 1xbit is a decent platform for sports betting, especially with its support for digital currencies. The mobile betting experience is smooth, but I found some of the betting bonuses to be less appealing compared to other sites.

And lucky for you, I’ve got the scoop on an exclusive first deposit bonus just for us. Along with the main welcome offer, 1xBit also dishes out a few extra promotions for both casino and sports betting fans. You’ll find plenty of rewards up for grabs, but don’t expect a typical loyalty program here. Are you the kind of gambler who wants to keep track of the latest volleyball matches?

The answers are good enough in most cases, but you can request an operator for further information and support. From our review, the operator provided quick replies and was efficient in providing the right steps to resolve our issues. The gameplay quality remained stellar during our mobile gaming sessions. Nevertheless, you’ll have to deal with the much smaller screen size and the stress of switching to landscape mode more often to accommodate some of the games. We got a prompt to install the mobile app when we opened this site on our Android device for the first time.

Registering is very easy and you don’t even have to fill in your email address. We do however recommend to specify your email address, so you can recover your account when you forget your login credentials. Next is to enter your email and password and press the log in button. However, that’s only if you already have an account on the platform. However, we did not find any details of the casino’s license number on the website. You can calculate equivalents when switching from one crypto to another.

When evaluating whether 1xBit is safe to use, there are several factors to consider, including licensing, regulatory oversight, platform rules, and responsible gambling policies. First, 1xBit is licensed and regulated by the Government of the Autonomous Island of Anjouan, part of the Union of Comoros. According to the platform, this license allows it to legally conduct gaming operations and offer games of chance and wagering services.

We promise that every result will be clear, so you can always trust that they are real. Two-factor authentication and other cutting-edge technologies protect account access, making it almost impossible for someone to get in without permission. When it comes to withdrawals, mBTC and USDT are two popular options. The minimum amount you can withdraw is 0.21 mBTC with a commission of 0.01 mBTC. When heading to a deposit page, you will be offered all available methods plus your unique wallet address for each digital currency. You can copy it or scan it as a QR code to deposit money into it from your usual crypto wallet.

The mobile version is fully functional and mirrors the desktop experience. Speaking of what 1xBit has to offer, you will be thrilled to hear that this is truly a player’s casino, as everything you encounter is built for the sake of the customer. From the tens of thousands of games to the payment situation and the dozens of bonuses, 1xBit is an online casino that is all about providing the ultimate iGaming experience for its players. All you need to do is keep reading our in-depth review, and you will see what we mean when we say progressive iGaming. Funding an account involves sending coins from a personal wallet or exchange to a unique address generated in the cashier, after which balances appear once the blockchain confirms the transfer.

In terms of jurisdiction, the company is licensed in Curacao under government law. They also have responsible gambling processes in place to protect players from getting carried away and betting what they can’t afford. Also, in terms of security, not only is your bitcoin safe due to the blockchain technology, but they also have SSL encryption and a firewall protecting their site. ESports or Electronic Sports has quickly risen to become a billion-euro industry.

The latter is a place that will grant you different prizes, including spins on the Lucky Wheel, free bets, and more. Users will start with a cashback once a week, but if they reach the Diamond level, they will get it daily. Reaching the next loyalty club level requires you to wager real money. We have read comments saying that 1xBit is a scamming website because it refuses to pay people’s bonuses. However, after our tests and talking to some of our clients, we did not find this true. For me, it is all about the extra funds I got after using SILENTBET as my 1xBit bonus code.

  • The 1xBit mobile app presents you with a variety of betting options.
  • Conducting transactions is easy, with many exchanges and cryptocurrencies being offered.
  • Use welcome packages, reloads, and cashback to extend your play on 1xbit Roulette.

Sports betting, casino games, and eSports tournaments can be engaged with anytime, anywhere and its mobile friendly design. The thing that makes it different is that it seamlessly integrates cryptocurrency and makes quick, secure transactions without the hassle of traditional payment methods. From its extensive sports betting opportunities to its immersive casino experience, the 1xBet app offers a comprehensive and enjoyable platform for players of all levels. Gone are the days of switching between multiple apps to satisfy your gaming and betting urges.

To get the most out of these offers, read our full Welcome Bonuses & Promo Codes guide. Select the registration button, choose fast ID or email, set a strong password, confirm age and terms, and you’re done; email users just verify the inbox message. You have up to 5 days to play the free spins and the winnings have a 30x wagering requirement that must be completed within 5 days. 1xBit operates under an international gambling license and uses industry-standard security measures, including encrypted connections and account protection tools. KYC verification is generally required before withdrawals, especially for larger amounts. The verification process involves standard identity documents and can be completed directly via mobile devices.

The 1xBit app, on the other hand, is ideal for players who want faster access and smoother performance. Available for Android, the app allows you to enjoy all the features of 1xBit with enhanced speed and convenience. From live betting on cricket or football to playing slots and poker, the app makes everything just a few taps away. It supports over 50 cryptocurrencies for instant deposits and withdrawals, all while maintaining top-level security.

For gamers who prefer not to download the 1xBIT app, the casino also offers a robust mobile-friendly website. This mobile version is designed specifically for one-handed gaming, making it convenient to use. Regardless of your operating system, almost any device can be useful to you.

Moreover, the registration here is quite simple because all you need to do is provide a valid email address and you can embark on your bitcoin betting journey right away. With high stake limits and competitive odds, it is no wonder why so many players visit both the sbook and casino platforms on a daily basis. That is precisely the reason why we give 1xbit 9.3 out of 10 rating. Ice Hockey 1xBit is considered one of the best ice hockey betting sites for crypto users, covering the NHL, KHL, European leagues, and major international events. Key Strengths 6,000+ games across slots, table games, jackpots, and live casino.

For example, the USDT minimum deposit allowed is 1 USDC, kSHIB – 2000, ADA – 2, mETC – 30, etc. Therefore, I strongly recommend checking the deposit limits before playing for real money. If you are familiar with fiat currencies only, we would recommend using USDT for deposits. If you use an Android device, the best way to start enjoying casino games and betting on your favorite sports is to download and install the app with an APK file. Now, it’s not that the interface or presentation is bad – it’s not. The site is expertly designed and jam-packed with betting options.

The 1xBit app is available for both Android and iOS, but not through traditional app stores. Since it’s a crypto-first platform with no KYC, it doesn’t meet the compliance requirements of Google Play or Apple’s App Store, which honestly works in favour of privacy-focused users like me. I’ve personally used it on both Android and iOS, so what follows comes straight from real-world experience. In addition to these factors, regulatory frameworks shape platform features such as promotional structures.

Step 2: Make A Crypto Deposit

How does 1xBit handle exchange rates for different cryptocurrencies? Guides and Tutorials Step-by-step instructions for crypto deposits, wallet management, and platform navigation. You can always reach out to our support team with any questions at any time of the day, and our team will do everything possible to assist you. Our specialists communicate in 15 languages and are always ready to listen to make your experience with 1xBit as comfortable and worry-free as possible. Since many of these are made by third parties, there is not much consistency when it comes to user interphases. This means you might find yourself (as we did) constantly trying to figure out where to deposit funds, what currency each bet is being counted in, and the actual rules of each game.

Additionally, some other Philippines sportsbooks have prop builder tools to make assembling your daily bets a breeze, which is something 1xBit simply doesn’t offer. In this regard, many of the games are a chore to browse, as each contest can have over a thousand different wagers to choose from. As the digital gaming landscape continues to evolve, innovation is key to staying ahead of the curve. The 1xBet app exemplifies this spirit of progress, constantly pushing boundaries and introducing new features that redefine what is possible in the world of online betting and gaming. In addition to peer interactions, the 1xBet app features expert analysis and predictions across various sports and games. By leveraging these insights, you can sharpen your betting strategy and increase your chances of making informed and successful wagers.

Among games of Indian origin, you can find options like Rummy, Teen Patti, and Andar Bahar. You may face delays occasionally, which may be due to various factors like the blockchain you use or the state of your network. The site also contains live scores, keeping you up to date with the developments of an ongoing game.

The minimum deposit required to claim the bonus is 5 mBTC (Mini Bitcoin) or the equivalent in another currency. The game variety is excellent, and their customer support is available 24/7! 1xBit Sportsbook covers an extensive array of sports, ranging from mainstream leagues to niche competitions. Bettors will find an impressive variety of markets across pre-match and live betting options, ensuring diverse opportunities to strategize and maximize potential winnings. However, players can enjoy the VIP Cashback program, which rewards loyalty based on their activity level.

1xBit slots are the main attraction, with a wide range of mainstream titles and plenty of mechanics-driven categories. You can browse collections like Top Games and Megaways, and the lobby also highlights newer releases and popular picks. A polished crypto casino with instant payouts, a deep rewards system, sportsbook coverage, and a broad game library — but it is still better suited to players who… At 1Xbit Casino, all transfers are crypto‑native with zero internal fees on standard cashouts; normal blockchain network fees may apply. Popular options include BTC, ETH, LTC, USDT, BNB, XRP, DOGE, TRX, USDC, XMR, ADA, MATIC, SOL, DASH and ZEC.

Bitcoin, Ethereum, Litecoin, and Dash, among the most used cryptocurrencies, are supported. 1xBit’s mobile sportsbook is comprehensive, with over 50 sports supported and a number of betting markets toselect from. Live bet features, where one can bet on events as they unfold with immediate updates, are also available. We liked the live betting feature, which allows you to wager on ongoing events. The application provides real-time stats, so it is easier to place informed bets based on current performance.

If you’re close to a prize threshold, it may be worth increasing your activity near the end of the tournament. Time Your Play WiselyParticipating early in the tournament can give you more time to accumulate points and climb the leaderboard. However, some users enter late to capitalize on others’ burnouts — know your comfort zone. The app is not on Google Play or the App Store at all, so the download is a bit more complicated.

This Russia based gambling entertainment company launched its 1xBit branded online sportsbook and casino back in 2007. As such, players have access to a ton of the best quality Live Dealer games as provided by leading developers such as Evolution Gaming, VIVO Gaming, SA Gaming, XPG, Fazi, and MEDIALIVE CASINO. The list of preferred gaming & software providers includes Endorphina, Evoplay, PLAY’n GO, EGT, BetSoft, Rival, Fugaso, SpinTastic amongst many others. Similarly, popular slot options offer up all-time greats such as Rise Of Olympus, Almighty Sparta, Rich Wilde and the Tome of Madness, and The Mummy Returns. 1xbit offers a Sportsbook section and predominantly a casinos section. I loved the rich games library powered by top software providers like Evolution, Pragmatic Play, and Vivo Gaming.

This welcome bonus will provide a 1xbit bonus of up to 7 BTC spread over the first three deposits. The variety of slots at the 1xBit mobile version and mobile app is jaw-dropping. The overwhelming gaming pool is due to the endless list of software developers this operator works with. You will be able to test games with different story plots, a various number of lines and payout limits. The mobile interface features a similar use of scaled greys brightened by the judicious use of colour to attract and focus the eye on pertinent information.

It will contain all the necessary links, guides, and information to allow you to recover access to your account securely and in complete privacy. To see at a glance how the site is structured for Irish users, the overview below summarises the essential facts that matter before creating an account. Usually no ❌ Multiple accounts can violate terms and may cause bonus/account restrictions. The Anjouan licence provides minimal regulatory oversight compared to UKGC standards, eliminating access to UK dispute resolution services. Cryptocurrency volatility adds complexity to bankroll management, potentially eroding winnings through unfavourable exchange rate movements. The gaming catalogue at 1xBit spans multiple categories, powered by established providers including Evolution Gaming, Pragmatic Play, and Ezugi.

However, responsible gambling tools are somewhat limited compared to fully licensed tier-one sportsbooks. To access your account, go to the sign‑in form, enter your credentials, and confirm 2FA if enabled-this keeps the 1Xbit Casino Login process both quick and safe. You can also complete a 1Xbit Casino log in using your generated user ID rather than email if that’s how you registered. For returning UK players who saved credentials in a password manager, the form auto‑fills, and biometric unlock on mobile devices can simplify the journey further. After successful entry, the cashier displays crypto balances with helpful GBP equivalents for budgeting.

We cleared the 1xBit sign-up process within minutes before launching into the main game lobby. The site had over 11,000 games, including scratch cards and crash titles. We had a few 1xBit bonus deals to use on these games, but the primary highlight was the 300% welcome bonus, which we will get to soon enough in this review. 1xBit’s professional support team is always ready to answer any questions and assist you 24/7, ensuring an uninterrupted betting experience.

On Trustpilot, 1xBit sits around a 3.1/5 average from thousands of reviews, and the split is visibly polarized. The two most rewarding parts of the 1xBit VIP program are the faster cashback cadence at higher tiers and the way VIP status changes the cashback math. At Copper through Diamond, cashback is calculated on net losses over the period since your last request. At VIP status, cashback is credited per bet you place (even if you’re up overall), using category-based rates like 0.25% for slots and 0.1% for live casino. The 1xBit welcome offer is a multi-stage deposit deal that combines matched bonuses with free spins across your first four deposits. You don’t need a promo code to claim the standard 1xBit welcome bonus, but you do need to opt in to bonus offers in your account settings before depositing.

Both the mobile site version and the 1xBit apps performed excellently during our tests. The mobile site loaded fast, and there were hardly any interruptions while we tested it on Android and iOS. We know that when it comes to online gambling, every detail matters a lot. We carefully evaluated the operator’s services to provide you with accurate and helpful information.

Having more weekly bonus deals will also enhance the gaming experience and facilitate more regular sessions for players. Nonetheless, 1xBit stands as a solid choice for casual and high-roller players who are experienced or just starting. It offers up to 0.25% cashback on every bet you place in the casino games. All payments on this platform are handled by the cryptocurrency options on board.

Just be ready to keep tabs on your winnings if you’re using this feature. If you’re in for a jackpot thrill, 1xBit’s Mystery Jackpot Bonus could be your ticket. Play selected slots with three progressive jackpots (Bronze, Silver, and Gold) that can drop at any time.

The mobile version has all the same features as the desktop version. While you wait for your morning coffee, you can easily move between sections, handle your $ balance safely, and play slots, tables, and live games. With responsive design, controls, menus, and payments fit your screen perfectly, so you can focus on the experience no matter where you are. We have a licence that is recognised by the government, so you can relax and enjoy every game session knowing that your rights are protected and that we follow all the rules.

BIT Alternative Crypto & Bitcoin Casinos

1xBit is a crypto-heavy casino and sportsbook built around big Bitcoin bonuses, a deep slots lobby, and frequent promotions. It suits players who want broad coin support and don’t mind detailed wagering rules across sports and casino. If you prefer tier‑1 regulation or clearly stated withdrawal timeframes, you may want to consider an alternative. All features are tied into a crypto-first system that removes unnecessary barriers.

However, the webspace is flooded with gambling sites, hence, knowing which one to get your foot into becomes important. We bring you the review of 1xBit, a popular gambling website to earn crypto. This guide is part of the 1xBit Academy on Bitcoin.com — empowering you to get more out of every wager on the top crypto casinos. In terms of fairness, 1xBit tournaments are automated and use real-time leaderboards, giving users full visibility into scoring and outcomes. If you’re looking for a fully regulated gambling platform, Bet365 is a popular alternative to 1xBit.

All members are eligible and automatically qualified for the VIP Cashback program, the amount of which is calculated based on total wagers. If you want to bet with the crypto you already own — without compromise — 1xBit is ready when you are. Start betting with BTC, ETH, or any of your favorite coins on 1xBit today. 1xBit Casino works with a long list of cryptocurrencies, and it gives you the chance to purchase crypto with an extensive list of fiat currencies. The best way to see what type of operator 1xBit is would be tocompare it to other, similar casinos. This can help you get a clear picture of how this operator fares when compared to its competitors.

Casino games and live streams will use more bandwidth, but general browsing and betting are minimal. In addition, most licensed platforms implement identity verification procedures. These Know Your Customer processes typically require identity documentation, proof of address, and, in some cases, additional verification based on account activity.

When it comes to cashing out, 1Xbit Casino CA is designed to move funds back to players quickly and without restrictive upper limits. The minimum top-up is 1 mBTC, and there are no maximum limits for deposits or withdrawals. Esports are video games that have become real competitive sports, like Call of Duty and Clash Royale. Virtual sports, on the other hand, are computer-generated simulations. The platform doesn’t manipulate them but provides various scenarios you can wager on. Open a new account on 1xBit.com and receive a 100% bonus of up to 7 Bitcoin on your first deposit for online sports betting.

Please note that 1xBit only supports gameplay using cryptocurrencies, such as Bitcoin. There are countless crypto exchanges, so listing them all isn’t possible. For full details on how to deposit and withdraw funds, please visit the «1xBit Quick Info» section at the top of the website.

The casino is also solid, with plenty of games and the convenience of playing anywhere with the same app and account you use for sports betting. Don’t wait — try it yourself on the official site and follow your favourite sports. The platform allows betting on sports not usually available elsewhere, with average odds. It’s ideal both for beginners who enjoy using crypto and for experienced punters combining it with other platforms — especially thanks to its mobile apps. I hit a jackpot last week and the withdrawal process was super fast!

How much is the 1xBit Welcome Bonus?

It has proved authentic, using secure socket layer (SSL) encryption technology that safeguards clients’ information and funds from criminal agents. Players on several 1xBit Casino reviews have also mentioned how safe it is to gamble on the platform as they are protected by top-notch security measures. Both platforms offer the same features, but each one works best in different scenarios. Your selection relies on wagering approach and individual inclinations. All features, including entering bonus codes and tracking wagering progress, are fully accessible through the app’s menu.

As a result, 1xBit ranks among our top-rated crypto sportsbooks in 2026. If you’re a football fan, you’ll definitely appreciate the wide range of betting options available. There are hundreds of football events listed — just click on the football icon to see the full list of available matches. I haven’t encountered any issues with them but this casino has been in the spotlight for using pirated games and having no license is also a concern for me.

Most players today prefer betting platforms that offer more attractive bonuses. That’s why 1xBit has significantly expanded the number of offers for both new and existing users. Over the past ten years, our company has evolved from a pioneer in the field of crypto bookmakers into a huge international brand. 1xBit is a platform that offers unexpected gaming opportunities, but also bonuses. Every day, you receive an email with a new bonus and the rollovers are lower the more you play. If you use cryptocurrencies, you know that account withdrawals are very easy to make and are also a nice amount.

It’s simple to create an account with just a few taps (no extensive personal info required) if you’re into keeping your identity private. Integration of the app with cryptocurrency wallets helps improve convenience as Bitcoin, Ethereum, Litecoin and other digital currencies can be used for deposits and withdrawals. All top-rated Philippines legal online sportsbooks offer live in-game betting options, and 1xBit is no exception.

For sure, the package is huge and will boost your experience and money. Alternatively, if you’re not keen on downloading the app, 1xBit’s mobile site is a wonderful alternative. We were amazed at how similar it looks to the desktop site when we tried it out. The latest version of the app (51(4746)) works perfectly and even allows you to restore your security settings to normal after you’ve installed it. The content published on this website is not aimed to give any kind of financial, investment, trading, or any other form of advice. BitDegree.org does not endorse or suggest you to buy, sell or hold any kind of cryptocurrency.

1xBit Casino is a crypto-exclusive gambling hub launched in 2016, operating as a strictly no-KYC platform with support for over 40 cryptocurrencies. Players can immediately leverage a multi-stage welcome package worth up to 7 BTC while accessing 90+ elite software providers. For slots players, there are thousands of different video slots to check out. Many of the biggest titles in the space today are on offer, with new games being added on an almost daily basis. This review is part of the 1xBit Academy on Bitcoin.com — guiding you through trusted crypto casinos and betting platforms.

Để lại một bình luận

Email của bạn sẽ không được hiển thị công khai. Các trường bắt buộc được đánh dấu *