Control your garage door from anywhere with your phone. Works with most brands of garage door openers manufactured after 1993 that use photoelectric sensors that do not shut off. It is not intended for use with openers in which the photoelectric sensors located near the bottom of the garage door change power mode (e.g., lights on the sensors turn off after the door is closed), or any Chamberlain Group opener with a yellow learn button manufactured between 2010 and 2021, or any Linear opener. System Requirements: a router with 2.4 gigahertz Wi-Fi frequency, router with 802.11 B/G/N, a router within 50 feet of the Smart Garage Control (more details in PDF user manual). Must have a sectional garage door. Product certified for use in US only. Bluetooth makes setup easier than ever.