2x Remote Control - no Batteries Details A Non-slip Housing: It Is Equipped with a Non-slip Housing to Prevent You from Misuse. A Metal Keychain: It Comes with a Free Matching Keychain, Which You Can Hang on Your Bag or Clothes. This Way You Won't Worry About Losing It. Applications The Key Is Suitable for All Kinds of Door Openers with 433mhz Frequency. .
eBay