... speaker 2,digital portable speaker 3,USB Li-ion battery 4,accept paypal, 5,frequence: 80-2000HZ 1,support ... FM to radio2,Buil-in LAN-IN port,to connect MP3,laptop ,MD,CD etc;3,DC, USB,battery ... 3W dual voice built-in, frequence:80-2000HZ Power:4*3W 1. 12 months Manufacturer`s limited Warranty for defective ... Very good portable speaker for cell phone PC computer MP3 MP4 player mini speaker free shipping