Specifications:1. Product shell: zinc alloy2. Product color: black3. Capacity 8G4. TF card expansion capacity: 8G- -128G5. Screen size: 4 inch IPS HD screen6. Key operation: full touch operation7. Music format: MP3, WAV, DRM WMA, OGG, APE, FLAC, ACC (including AAC-LC, AAC HE, AAC+V1/V2) and other mainstream audio formats8. Video format:1080P (1920x1080) HD formatsupport: RM, H.264, Xvid, Mpeg2, etc.720P (1280x720) resolution support: HD video below 720P, no format conversion, can play directly9. Bluetooth support: Bluetooth 5.0 (support receive and transmit), support device Bluetooth broadcast background playback, support mobile phone Bluetooth synchronous playback.10. Bluetooth distance: around 10 meters under barrier-free.11. OTG Function: It support OTG, BUT ONLY support Andiroid phone with OTG function(If your Android phone can't support OTG, then this item can't support), and CAN NOT support IOS phone.,12. Dictionary function: machine support 15000 word translation13. Recording format: WAV / MP314. Recording distance: Around 3 meters straight15. Microphone: Built-in microphone single microphone16. Lyrics format: LRC format17. E-book format: TXT format (Support Chinese/English voice playback)18. Image support; mainstream image formats such as JPG, JPEG, BMP, GIF, PNG, TIF19. Compatible systems: XP (Home, Pro, with SP1, SP2, SP3), 32bit / Windows 7 --10 64bit20. USB connection: USB.2.021. Charging time: Around 3 hours22. Main function: music, Bluetooth, video, recording, radio, picture, e-book, electronic dictionary, game23. Additional features: motor vibration, fash little game, alarm clock, calendar, stopwatch,theme background switchingPacking List:1 X Mp3 player1 X Earphone1 X USB Cable