Q998 16GB MP4 E-book Privacy Reading Smart Watch, Support Time Display Music & Video Playing Picture Browsing Stopwatch 1. Only when you look sideways, you can see the content of the text. Others can see the locked screen state 2. Material: ABSMetal 3. Battery capacity: 200 mAH 4. Standby time: 8 days 5. Charging mode: USB 6. Memory capacity: 16GB 7. Music support: WMA, WAV, MP3, MP4 and other formats 8. Video support: AMV, AVI 9. E-books: TXT can be set to the same level of light and darkness as the lock screen. 10. Picture Support: JPEG, BMP, GIF Picture Browsing 11. Support 28 languages (Czech, Greek, English, Danish, German, Spanish, French, Italian, Hungarian, Dutch, Norwegian, Polish, European Portuguese, Brazilian Portuguese, Russian, Slovak, Finland, Sweden, Turkey, Simplified Chinese, Traditional Chinese, Japanese, Hebrew 24. Arabic, Rome) Niagar, Indonesian, Bulgarian, Chinese) 12. Functions: Time display, music playing, video playing, picture browsing, e-book browsing, stopwatch, calendar 13. Product size: 18*41*45mm 14. Weight: 46g 15. Display screen: TFT screen, 2.8cmx3.3cm