HDMI cable for iPad 2/ iPhone 4G 4S/ iPod Touch plug & play, not need external power supply support HD signal output ... Introducton:HDMI Cable for iPad 2 /iphone 4G 4S /iPod Touch 1.Plug and play. 2.USB connection kit 3,dock connector ... 2, iPad , iPhone 4, 4s, 3Gs, iPod TouchCompact and lightweight, easy to carry aroundJust plug and play, easy to useSupports videos, movies ...