Feature: 1.This device is suitable for the device with HD output, Such as:Computer,Set-top boxes, DVDs and other devices. 2.Point-to-point HD Video wireless transmission. 3.Support free Switching of multiple transmitters. 4. Support 5G/2.4G dual-band WIFI. Specification: Model: A20W; Specification: Port: HD (V1.4)/Type-c USB/VGA/Audio; Color: Black; Power: 5V/1-2A; Resolution: Max 4k 30Hz; Info of Full set: -Wifi:IEEE 802.11ac 2.4GHz/5GHz. -Resolution:3840 x 2160P@30fps, 1920 x 1080P@60fps,1280 x 720P@60fps. -Transmitter Distance:50M(Point to Point Mode),10M(Wireless Mode). -Support System:For Android/Windows/macOS/linux/IOS/For PS5/For Xbox. -Supported Protocol:For Miracast/DLNA/Airplay. -Support Computer Expansion Mode. -Support Multi-Device Connection.  -Plug and play:no need software ,no setting,No driver. Notice: it show different position if the led show different position. 1.Turn on-Just powered on or the device is successfully connected to the transmitter (HD TX) and runs normally. 2.Slow flashing-The product system is ready for setting. 3.Quickly Flashing-The product is being paired with the transmitter (HD TX) or the product already has a transmitter. Terminal (HD TX) configuration file, connecting. 4.Turn off-The power switch is not turned on or the product is error. Package Included: 1 x HDMI Transmitter 1 x Receiver 1 x Manual