Fangrui Product Details 1. Bluetooth Mp3mp4 Student Walkman Music Player E-book Playback 2. Parameter: 3. Bluetooth Version: 5.0 4. Audio Format: Ape, Flac, Mp3, Wma, Wav, Aac-lc 5. Video Format: Avi 128*160 (conversion Tool Conversion) 6. Recording Format: Wav 7. Picture Format: Support Jpgjpegbmp 8. E-book Format: Txt File 9. Operation Mode: Button Type 10. Memory Card Type: Tf Card 11. Headphone Jack: 3.5mm 12. Support Audio Format: Mp3, Wav 13. Screen Resolution: 160x128 14. Menu Language: Chinese, English, French, Dutch, Spanish, Russian 15. Function: Game Console Function, Support Bluetooth, Fm Function, Recording Function, External Playback Function, E-book Reading, Direct Recording Function 16. Battery Capacity: 3.7v 250mah 17. Charging Input: 5v1a Input 18. Charging Time: About 2 Hours 19. Display Screen: 1.8 Inches 20. Interface: Usb 2.0 21. Chip Model: Huilian Yp3-mp3 22. Dimensions: 90.5 X 39.5 X 10mm 23. Net Weight: 30g 24. Gross Weight: 78g 25. Features: 26. High-fidelity Lossless Sound Quality, Born For Good Music, Low Distortion Rate, Close To The Original Sound 27. Listen Anytime, Anywhere, Fm Radio, Support Fm Recording 28. Compatible With The Otg Function Of Android Mobile Phones, Just Connect To The Mobile Phone, And It Is Super Convenient To Transfer Files