gLink M - Turn smartphone to garage remote, supports more users, also a good Gift! Easy to install, no battery, no power cord, no maintenance. Upgrade your old garage opener with phone control Support iPhone (iOS8.0 or later) and Android phone (with Bluetooth4.0 and OS4.3 or later) Open/close garage door, turn on/off the light, monitor the door open or close. Gesture control with knocking phone 3 or more times, no need to turn on the phone and open the App Safe with AES128 protection, dynamic password. Co-exist with your current remote control and wall botton