1、SIM Card Compatibility: Unlocked 4G smartphone ensures smoother experience. Check your SIM card compatibility before use. 2G GSM: 850 900 1800 1900, 3G WCDMA: B1 B2 B4 B5 B8, 4G: B1 B2 B3 B4 B5 B7 B8 B12 B17 B20 B28A B28B B40 B41. 2、Compact and Easy to Use: The small phone is compact, lightweight and features smoother grip in the hand. Its cute, practical design is suitable for students to use. With simple features, it can also be used as a handy backup phone for travel. 3、2500mAh Long Lasting Battery: The 4G smartphone features a powerful 2500mAh battery for extended usage time, ideal for calls, texts, and browsing, ensuring long endurance without frequent charging, great for all day stable performance. 4、Dual SIM and Expandable Memory: The phone for Android offers excellent storage options with dual SIM support, eliminating the need for multiple phones. Expand storage with additional storage card slot for more photos, videos, music, and files. Enjoy ample space without worrying about low memory. 5、Front Rear Camera: The mobile phone comes with a quad core processor and ensures fast performance for Android 8.1, supporting various APPs. It also comes with a 2MP front camera and a 5MP rear camera, making it easy for you to take clear photos, supporting facial recognition technology. Item Type: 4G Unlocked Small Smartphone Screen Size: 3.0 inch Resolution: 360 x 640 Operating System: For Android 8.1 Processor: MT6737M RAM: 2GB ROM: 16GB Storage Card: Up to 128GB (Not Included) SIM Card: Dual SIM Front Camera: 2MP Rear Camera: 5MP Built in Battery: 2500mAh Battery Charging Port: Type C Frequency Band: 2G GSM: 850/900/1800/1900, 3G WCDMA: B1/B2/B4/B5/B8, 4G: B1/B2/B3/B4/B5/B7/B8/B12/B17/B20/B28A/B28B/B40/B41 Other Functions: WiFi, GPS Navigation, MP3, MP4, Calculator, Alarm Clock, Calendar, etc. 1 x Mobile Phone 1 x USB Cable 1 x Protective Case 1 x Screen Protector 1 x SIM Card Ejector Pin 1 x User Manual