The LiftMaster 828EV is the new and improved accessory with built-in myQ technology for remote monitoring / control of your LiftMaster automation systems. Compatible with a wide variety of LiftMaster Evolution gate and garage door openers. MyQ is a revolutionary patented technology that allows for two-way communication, ensuring that you can monitor and control your gate or garage door from anywhere in the world with an internet connection, using your mobile phone, tablet or laptop / PC Your internet-enabled device will communicate with your LiftMaster Internet Gateway which will pass information between your device and your opener, be it commands to open and close or status / monitoring queries.