of the display and scale the computer's output to match it. The converter will take audio signal from the computer and embedded it into the HDMI signal output, so that the user is able to enjoy both audio and video through a single cable. Compatible Mode: The usually use system: win7, win8, win10. How to use: 1) Insert the VGA interface into the computer or other equipment with the VGA output. 2) Plug the USB and Audio connector into the related interfaces. 3) Connect the HDMI cable to the hdmi female interface, and then connect the HDMI cable to the displayer or projector with the HDMI interface. 4) Play the video, PPT and documentation, the images will be displayed on the screen of the other display device. Delicate packaging includes 1*VGA Input To HDMI Output 1080P HD Audio TV AV HDTV Video Cable Converter Adapter 1*Audio Cable 1*Usb Cable 1*User Manual