Escelente compraThis device comes with instructions for different types of openers. The one that I have wasn't included and the instructions were useless. I also have instructions on the actual opener. Those instructions didn't work.I then searched online for a copy of the manual for the opener I have and luckily I was able to find it. Those instructions ALMOST worked. I had to change one step and then FINALLY I got the remote to work with the opener.So, for people buying one of these, you may have to do some digging on the internet to get the remote to work with your opener.bought this Liftmaster remote because my second Craftsman bought at Sears a few years back was starting to work intermittently (even after a battery change)…important to note, the Liftmaster remote has a more durable looking case & printed circuit board than the Craftsman which is what sold me…long story short, took < a minute to:clear old codes, relearn then program from start to finish…if your looking to replace that POS Craftsman, look no further than purchasing that Liftmaster & your welcome…I bought a house after renting it for a few years. The owner had no idea where the remotes went. Whether he lost them in his move or the previous renters lost them, nobody knows. As an interim solution, I used a wireless Christmas tree lights switch from Stanley that had a key-fob as a security measure (remotes are out there somewhere). I'd turn on the power to the garage opener and use the wall button to work in the garage. It was a pain. I finally got the ambition to try replacing the remote with this one as a test. The pairing of the remote to any of 4 families of openers (yeah, surprised me too) is easy. As a matter of fact it is bonehead simple. The instructions that come with it are very clear and easy. I have 2 more added to my cart for my next Amazon order. Glad I found these.When we moved into our house, it had and old craftsman opener in the garage. We needed another one for my wife's golf cart so she could enter when we get the Florida rain storms. Instructions are just a little sketchy but I finally figured out that the # of times that you press the learn button corresponds with the color of the learn button. Mine was green. All in all it was well worth the money. A Craftsman opener was twice as much.Works greatUsed with a craftsman garage door opener. Very easy to set up. Works great.super fast delivery, inredible price compared to purchasing from the big box store, programmed in 4 easy steps:turn on remote, push the remote button you are going to use 4x if your opener has a green button, fewer times for other color models,exit the remote with one of the other two buttons, push the green program button on your garage door opener itself, theaim the remote at the green button and push your dedicated remote button ( I used the long one.) until the light flashes. It didn't work the first time because I did not push the button 4 times long enough. Repeated the steps and the remote opened the garage door perfectly.Very happy with the remote, the brand name ( lift master) and the big savings on price. I could have bought 3 of these remotes for what I paid for one two years ago. You have to love Amazon. I am purchasing two more right now as back ups even though our original remotes have been in the family since 1994!!!!!!Did not open the door for my garage, on the site said that it wouldExcellent product. Works great. Easy setup.Clear and simple instructions. Only took minutes to program.Works like a hot damn.Worked great on my 137 Series Craftsman garage opener and was easy to setup!