... .AC power 3.RMS:10W 4.usage:speaker for iphone 4S Mini speaker, plastic speaker, mp3 speaker, wireless speaker,USB speaker 1.Recharge: USB charging, USB download ... /MAC,MP3 player,MP4 player, DVD player3.Mute function4.suitable for: Ipod, Sony Ericsson, NOKIA, SAMSUNG mobile phone,MP3 player ... I-pod docking and four pieces I-pod backrest, Extra for four kinds of mobile phone docking , add USD3.00 Box ...