... Phone3G; 4G/4S console.Use of digital audio amplifier, 2.0 channel high-power high tone ... MP4, etc.)Four functional electronic switch (audio on-off switch, audio input selection,volume +, volume -), easy ... for charging all kinds ofdevices, such as: iPhone; iPod; MP3; MP4; Bluetooth headsets, mobile phones.Accessories ... /grip New arrival fashion Audio dock speaker for iphone 5 4 4s/ipad /ipod MP3 MP4