... radio speaker 2,digital portable speaker 3,USB Li-ion battery 4,accept paypal, 5,frequence: 80-2000HZ 1,support TF ... ,to connect MP3,laptop ,MD,CD etc;3,DC, USB,battery can provide power; 3W dual voice built-in, frequence:80 ... price KS-13 mini speaker Very good portable speaker for cell phone PC computer MP3 MP4 player mini speaker free shipping