GK Cast Wireless Display Transmitter and Receiver Kit Support 4K, USB-C & HDMI Dual Transmit Ports, Wireless Presentation Equipment for Laptop, PC, Smartphone, Projector, HDTV 165FT/50M. (PINK)

Charging Both TX and RX

Connect the receiver and the transmitter to the power source, but there's no need to connect them to the devices yet. The transmitter will start flashing RED light.

NOTE: To avoid system error, do not press and hold the transmitter button before charging.

Start the Pairing Process

Press and hold the WHITE button of the transmitter (about 10 seconds). Then release the button when the BLUE light starts flashing rapidly.

Using Pairing Connector

Once the BLUE light turns to flashing RED light, using the pairing tool to connect the receiver and transmitter.

During the pairing process, the transmitter still shows the flashing RED light.

NOTE: A pairing tool (pairing connector) is included.

Completion of the pairing process

The pairing process has been completed, the light will turn steady RED to BLUE.

The final step is to disconnect the receiver and the transmitter from the power source.