Works with most brands of garage door openers including your In-Car garage door button. Easy to install, easy to program, no special tools required. Don"t dig around your car to find your garage door opener! This garage door remote control includes a keychain style remote with a long-life alkaline battery. It is very compact-in size and includes 2 buttons so you can operate two garage doors if needed. (additional Garage Door Receiver 318R required for second door; sold separately) Unlimited remotes and keypads can be added to each receiver. The remote can also be used to control your plug-in lighting, fans or small appliances by adding model #SW-318R Wireless Switch Receiver (sold separately). After connecting the receiver to your wall button, your existing remote controls will also continue to work. Whether you prefer to open the garage door with a personal access code- model #318K keypad or with the remote, model #318TN, this package provides peace of mind and ease of use.