... 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) The cable Pro provides high speed USB 2.0 data transfers,while simultaneously charging your phone through 3) your computer ...