The remote control is very small and well made. My old Chamberlin garage door system didn't look like the installation/installation drawings and the installation procedure is included in the instructions. I tried several YouTubes but couldn't sync this new remote control. However, as others have pointed out, you can call the company (Chamberlin) and call a real person who knows exactly what to do, who will find the ID for your exact system and give you step-by-step instructions on what works. (I told her to sound like she was talking to a golden retriever, borrowing that phrase from a great movie.) She was very very helpful. Kudos to Chamberlain for this great support service. After completing the necessary steps in the correct order, it takes 5 minutes to sync, including time to take out and put away the ladder, flashlight, etc. The remote control is really small, which makes it easy to fit in a jacket pocket, and can be used while walking or driving by bike / motorbike. It could even be a keychain.
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