we have added the device for you,, pls kidnly add it via searching Brand:Benchmark Model:LA4 If you would like to distinguish the power on/off button , you can use edit---assign key function in app, assign the power off button of LA4 to the blue key of U1 and assign LA4's the power on button to the power button of U1 I have attached the reference video of how to reassign button, pls check: https://youtu.be/HTKHJ2psmJ0