Komingo Hdtv Adapter MHL Micro USB to Hdmi Hdtv Tv Cable Adapter Compatible with Samsung Galaxy S3 Siii I9300 LTE (MHL to HDMI) 1.MHL is a new technology which allows you to create a HDMI output from your Smartphone's micro usb port, perfect for playing back your HD videos on a HD TV using a standard HDMI cable. 2.This MHL adapter allows you to plug in your micro usb charger to keep your phone fully powered while playing back your HD movies or flicking through your photo albums. 3.The Mobile High-Definition Link (MHL) ports act and look like standard micro usb ports, but using the appropriate adaptor, can stream content to your HD ready TV. 4.Only compatible with the Samsung Galaxy S III / i9300 .The adaptor must be plugged into a mains charger since a computer's USB port will not provide enough power. 5.Firstly plug in a standard HDMI cable (not included) in to the MHL Adaptor,and the other end into your HD TV.Plug in a micro usb mains charger (not included) into the port on the MHL adaptor.Then plug the MHL adaptor into your compatible phone's micro usb port. Your phone's contents should now be mirrored on the big screen.