... delivery,good service9.with led lights function FUNCTIONS:•sport bike mini speaker.•Built-in rechargeable Li-ion battery usb rechargeable ... tf slot pc mini speaker.•Accompanying usb rechargeable sport bike mini speaker for PC,MP3,MP4,mobile phone and notebook. Lithium battery3.7V900mahS ... ,MP4, CD, DVD, iPod, iPhone, GPS, PSP, mobile phone, notebook computer, Hi-fi speaker, U-disk and TF card.Perfect ...