1) The HDMI/ USB adapter is compatible with iPad/ iPad 2 2) Support to transmit the video and audio to HD TV or your HDMI to dock for iPad/ iPad 2, used to not only transmit video, data but also be as charger 3) Support 720P/ 1080P HD Digital signal output 4) Support videos, movies, MTV etc. 5) The HDMI adapter is a small, just like the camera connection kit for iPad/ iPad 2 , and it is very easy to carry to anywhere 6) Plug and play, No need power supply, No need jailbreak 7) Additional USB port has performance as data transmission and charger