Features: - Music Equalizer: Natural, Pop, Rock, Classic, Jazz, Soft, DBB - Plays mp3 music. Simply copy/paste the mp3 files from your PC to the MP3 player and you are ready to go. - Battery up to 90MA. - Supports USB 2.0 - Build-in Li-ion rechargeable battery, directly connect with PC for recharging - Slick stylish design in a compact case with clip - Can also be used as a Micro SD/TF card reader - Easy to Clip-on to anything - Files supported: MP3, WMA, MP3 VBR, AAC WAV music format digital music player. - Connected to the computer USB interface to charge the charger to the charging time MP3 do not exceed 4 hours.