1. Support U disk, Mini SD Card,TF Card, etc 2. Rechargeable, portable, 3. MP3, FM radio channel, 4. High quality,good voice Mini ... speaker with high quality voice;2. Compatible with iPod, iPhone, iPad, smartphones, MP3/MP4 players and so on;3. USB flash drive function ... color selectable;5. External good quality rechargeable lithium battery;6. Digital MP3 player with TF card / USB Drive slot; 7. U disk ...