Using the Accsoon CineEye 2 PRO is easy. First, connect the transmitter to your video source using an HDMI cable. Then, connect the receiver to your display device in the same way. Power on both the transmitter and receiver, and they should pair automatically for dual - band transmission at 2.4GHz and 5GHz. Since the set doesn't come with a power supply or batteries, you'll need to use your own compatible ones. When using, keep the transmitter and receiver within a reasonable distance to ensure a stable signal. For maintenance, keep the device in a dry and clean place. Avoid exposing it to extreme temperatures or moisture. If you're not using it for a long time, store it properly to prevent damage.