Specifications: 1. Support the SD card / MMC card, mobile phone, U disk 2. Audio input, support MP3/ MP4 / PC 3. Built-in rechargeable lithium battery 4. Can play 3-5 hours 5.USB2.0 power supply interface / 3.5 Audio Interface Details: 1. Stereo sound, the appearance of novel and unique, small and exquisite workmanship; 2. Support MP3, WMA format music files; 3. Supports SD / MMC card, USB; 4. Support for external MP3/ MP4 / computers and other audio input for external headsets; 5. Support for multiple languages, 7 EQ, 7 kinds of playback mode; 6. Built-in 500MAH rechargeable battery; 7. Memory function, automatically play songs from the last time to start playing; 8. Support remote control function ( OPTIONS) 9. Support 1GB-8GB U disk or SD / MMC card. 10. FM ( OPTIONS)