... /MAC,MP3 player,MP4 player, DVD player3.Mute function4.suitable for: Ipod, Sony Ericsson, NOKIA, SAMSUNG mobile phone,MP3 player and ... price quoted only includes I-pod docking and four pieces I-pod backrest, Extra for four kinds of mobile phone docking , add USD3 ... only better, so our products are more competitive bluetooth speaker for iphone 4