I bought this for my aging Dominator garage door opener; the opener still works fine but the remotes were showing their age. My brother gave me a couple of remotes that were surplus, but they were the wrong frequency for my system. This unit looked like the perfect solution so I took the punt. I had to email a request for shipping to New Zealand but then the unit arrived quickly. The remotes registered easily and work faultlessly, with good range. I can buy new remotes cheaply if I ever need to from DX or eBay. Perfect result, thanks!