... ,wireless speaker 1,DC 12V 2.AC power 3.RMS:10W 4.usage:speaker for iphone 4S Mini speaker, plastic speaker, mp3 speaker ... .Mute function4.suitable for: Ipod, Sony Ericsson, NOKIA, SAMSUNG mobile phone,MP3 player and so on.Output: 2x5w (stereo)respond frequency: 100HZ ... I-pod docking and four pieces I-pod backrest, Extra for four kinds of mobile phone docking , add USD3.00 Box ...