... Charge is more convenient - with Charge function Mobile phone usb data cable for iPhone 3G,4G,4S IPad;MP3,MP4,MP5 Functions ... : 1) This is USB data cable for Iphone,for Nokia,for blackberry, for htc..etc 2 ... ,while simultaneously charging your phone through 3) your computer 's usb port. compatible with Bluetooth, the cable pro lets you transfer files between ...