However, he was with his big brother, the existing remote controls 4004V001 summer - not to couple, or programmed. After a call to the company, helped me a very friendly engineer and told me that the programming for this device can be carried out on the garage door itself. He explained in easy to understand words what I should do, so that the device is programmed on my Geragentür. This then also works well, after I had, as recommended, plugged the plug of the device into the socket provided on the black box on the garage door and had pressed on the programming button. Since then, the transmitter works 4050 40.685 Mhz properly. It is small and easy to handle and its transmit power excellently. I'm very satisfied.