... pocker speaker 2,digital portable speaker 3,USB Li-ion battery 4,accept paypal, 5,frequence: 80-2000HZ ... MP3,laptop ,MD,CD etc;3,DC, USB,battery can provide power; 3W dual voice built-in, ... and/or misused after receipt). Accessories come with a 3-month warranty.2. Defective items MUST ... portable speaker Mini Pocket Stereo Li-ion Battery Speaker For MP3 ,cellphone,Computer, laptop and pc with FM Radio