M22 Portable Bluetooth Touch Screen MP3 Player Recorder E-Book, Memory Capacity: 32GB(Black) 1. Does not support expansion cards 2. Menu language: multiple languages 3. Professional recording, high-definition noise reduction 4. Bluetooth connection, multi-function touch buttons 5. Intelligent AB repeat, lossless music playback 6. Recording format: support MP3, WAV format 7. Backlight lights up the screen, making night operation more convenient 8. 8 speed and slow speed playback, multi-format video playback 9. Additional functions: support Bluetooth, picture browsing, e-book reading 10. Life time: 30 hours 11. Screen size: 1.5 inches 12. Screen resolution: 160×128 13. Battery capacity: 300mah lithium battery 14. Frequency response range: 20HZ-20KHZ 15. There is a headphone jack, USB interface: Micro USB 16. Support audio formats: MP3, WMA, WAV, APE 17. Size: 86.5x42x9mm 18. Weight: about 34.3g Packaging accessories: 1. Host x1 2. Headphone x1 3. Data Cable x2 4. Manual x1 5. Warranty card x1