Product Feature: 1.Synchronous Display This VGA adapter is the first one that can achieve synchronous display function. You can not only use VGA or VGA to HDMI compatible single display function, but also VGA and HDMI compatible synchronous display function. [Note: HDMI compatible and VGA displays can only display the same images]2.Plug and PlayNo external drivers required. Ease of use and convenient use. Connect the HDMI-compatible/VGA/o port to other corresponding output devices, such as HDTV, projector, monitor.3.How to use o Output If you connect VGA individually, connect the o jack of the input device to external speakers to output sound; If you connect VGA to HDMI compatible, please connect the o port of the adapter to external speakers to output sound. 4.VGA 3 in 1 AdapterHDMI compatible/VGA/o output ports with the maximum resolution of 1920x1080p@60Hz. Connect the o port and VGA/HDMI compatible output port to the corresponding interface of TV, projector, monitor, it will support both o and video output.Product Description: The VGA to VGA/HDMI compatible adapter is the first one that can achieve synchronous display function. [NOTE: HDMI compatible and VGA monitors can only display the same images.]Plug and Play. No external drivers required. The video converter is suitable for home theater, conference, presentation, teaching, game, exhibition, etc. About o Output: If you connect VGA individually, connect the input device's o jack to external speakers to output sound. If you connect HDMI- compatible, connect the adapter's o-port to external speakers to output sound. NOTE: Connect the micro USB cable to your USB device to power our adapter when you use it. [NOTE: This is a necessary step]If you want to transfer 1080p video, images or other content from input device to external large size, Make sure you have HDMI compatible/VGA 1080p cable, 1080p HDMI compatible/VGA monitors. The most important thing is that the input device must support 1080p. Package includes: 1*3 in 1 VGA adapter 1*Micro USB cable 1*3.5mm o Cable