Simply connect the HDMI male end of the adapter into an HDMI connector of notebook or desktop PC and the female end of the adapter to your VGA cable from the display. It converts HDMI digital signal to VGA analog signal and supports full-size high-definition resolution of 720p or 1080p. A perfect companion for an easy and enjoying life! Specifications: Super small design concept, carring easily A Simple HDMI to VGA conversion Support plug and play, Do not need to set Powered by HDMI port Support HDMI V1.4, HDCP 1.3 Support 3D Product resolution of up to 720p/1080i/1080p Audio output: 3.5mm audio jack length of the audio cable: 1m/ 3.3ft Product input: HDMI Product output: VGA+Audio Package include: 1 x HDMI to VGA Adapter 1 x 3.5mm Audio Cable Note: 1. When there is noise when inserted into the 3.5mm jack, check if the audio cable is plugged into place. Please use the 3.5 audio cable in the package 2. If you cannot connect an audio device using this converter, please check if the audio port is broken 3. This converter does not support ARC function 4. If no signal going through, please adjust the signal source to PCM 5. If there is no audio, you can try to unplug all the cables and reconnect 6.If the connected projector does not work, please reduce the resolution of the projector to 1080P or below 1080P