Easily plug and play, (no external power supply included); Charge your device while enjoying your i9300 content; Mirror your S3 through the standard HDMI output on a compatible TVproduct made for the Galaxy S4/s3 Samsung galaxy note 2.comes in a reusable non-retail packagingConnects Micro USB Female port to Computer or Power Adapter for charging and getting power using a Micro USB to USB M/M cable(not include)Uses a single & thin adapter to connect your galaxy S3 to the HDTVThe MHL (Mobile High-Definition Link) Adapter is an accessory made with one purpose in mind to connect your MHL Host, like MHL Phone or Tablet, to your HDTV for viewing content on a larger screen. This state-of-the-art technology connects your MHL Host to your monitor or TV from the micro USB port to the HDMI port. This product is specifically made for Samsung Galaxy S3.S4/SIV Smartphone HDTV Adapter With this new arrival Samsung Galaxy S3 S III HDMI MHL/HDTV Adapter. you can playback your videos on your HD-ready TV. You will be filled with wonder what your phone can do with the Samsung S3 and HDTV adapter as your Galaxy S3 is capable of recording and playing back video in full 1080p HD. you can also connect a microUSB mains power cable to the device at the same time as the MHL HDTV adapter has a micro USB port on it to accept power. So, you can watch a film stored on your Galaxy S3, play it through your HDTV and keep the phone charged at the same time.This product is also works for Samsung galaxy note 2,S4/SIV Smartphone HDTV Adapter