... 3.RMS:10W 4.usage:speaker for iphone 4S Mini speaker, plastic speaker, mp3 speaker, wireless speaker,USB speaker1.Recharge: USB ... charging, USB download charging, independent charging.2.compatible with CD player,PC/MAC,MP3 ... player,MP4 player, DVD player3.Mute function4.suitable for: Ipod, Sony Ericsson, NOKIA ...