... channel, 4. High quality,good voice Mini music car digital sound box speaker with high quality ... With the mini speaker, you can enjoy good music at any time. Product feature1. Car model speaker ... with iPod, iPhone, iPad, smartphones, MP3/MP4 players and so on;3. USB flash drive function to ... power dissipation;9. Multi-function keys: volume control, music selection;10. FM radio channel function;11. Mode ...