Features: One-click copy, each key password is saved separately, can be copied and used a million times continuously. Strong privacy, especially suitable for copying your own remote control at home. Usage: 1. Before copying, erase the Test Code copied at the factory during production by simultaneously holding the two buttons on the front of the remote control (usually the lock and unlock buttons). After approximately three seconds, the LED indicator flashes, then releases. Press either button separately, short press the LED light does not light up, long press the LED light flashes three times to indicate that the internal code has been cleared. 2. Hold down the copy key on your laptop. Press and hold the corresponding key on the guest's laptop, near the receiving antenna. You can also adjust the angle of the two remote controls.