About audio output: 1: connecting through HDMI cable to your HDTV HDMI or displays with audio output, video and audio will output simultaneously.But if your HDMI displays without audio output, Please connect from your input devices' 3.5mm audio jack to your external displays to output sound. 2: connecting through VGA to your external displays, please connect 3.5mm audio jack from our adapter to your external speakers to output sound. 3: connecting through DVI to your external displays, please connect from your input devices' Audio port to your external audio devices to output sound. 4: Please do audio setting in your input devices and select audio output devices as HDMI displays. specification: input: HDMI male output: VGA/HDMI/DVI/audio external power supply: Yes> HDMI port Support V1.3, and the resolution of 1080P, 720P, and HDMI audio DVI port Support V1.0, and the resolution of 1080P, 720P> VGA port Support Max Resolution of 1920x1080, 1024x768 important notes: 10If you connect VGA to monitor from your laptop, and VGA can not transmit audio, audio can only be connected through connecting the audio cable from the adapter to external speakers. 2.Please be well known that you can only connect one monitor(hdmi or VGA or DVI) at a time, you can not connect more than one(two or three) monitors together. 3.Hdmi VGA and DVI cable(sold seperately) packing contents: - 1 x 4-in-1 HDMI to HDMI/DVI/VGA adapter cable with audio output converter> - 1 x Audio cable> - 1 x Micro USB power Cable> warranty policy: 18 month worry-free Warranty> 24 hr dedicated email customer support. See more

Hemi connectors resist corrosion, provide rigidity, and improve the signal performance. Easily display and share your videos, photos, games and more from your devices on any screen. Support external power supply. When connect high power devices or the device is in low battery, you could connect external power supply via Micro b-5v power port to charge your adapter. Transmit both Audio and video from computer or tablet to HD display with audio out via HDMI. Support video resolutions up to 1920x1080 and 1080P (Full HD) and flawless Audio pass-thru. But if connecting VGA, Please connect 3.5mm Audio jack from our adapters to your external speakers to get sound, If connecting DVI, Please connect from your input devices' Audio port to your external audio devices to get sound. Lightweight and portable adapter allows you to display content on your HDTV, monitor, computer, tablet, projector and other devices with HDMI or DVI or VGA to HDMI connector. Note: This adapter that you can only connect one monitor at a time, A separated HDMI/DVI/VGA cable is required. Multifunction HDMI splitter converter cable with audio output, supports HDMI/DVI/vagal(sold separately) output simultaneously to enjoy your favorite movies, YouTube clips, iTunes songs and movies.