8164W ½ HP AC Chain Drive Wi-Fi Garage Door OpenerBuilt-in Wi-Fi® allows for smartphone control with the myQ® app.Industrial-strength chain drive.Includes basic door control button.Enables secure in-garage delivery for Amazon Prime packages. Check availability in your area. FEATURES Home Connectivity with myQDOWNLOAD THE FREE myQ APPEasily ConnectEasily connect to a home network with built-in Wi-Fi®.Syncs WithSyncs with popular smart devices and platforms.Visit myQ.com for details. PowerDurable Chain DriveCount on long-term reliability with the durable chain drive system. Day After DaySupport standard aluminum doors day after day with the 1/2 HP AC motor.75% Less PowerConsume up to 75% less power in standby mode. Safety and SecuritySecure CodeConfidently know that every click sends a secure code to the garage door opener.Safety SensorsProtect people and vehicles with safety sensors that stop the door from closing on obstructions. Key by Amazon In-Garage DeliverySafe and Secure PackagesEnables secure in-garage delivery for Amazon Prime packages.Real-Time UpdatesMonitor and control your deliveries from your smartphone.Are You Ready for In-Garage Delivery?Check to see if you are eligible or learn how to set it up. Check now.Simple SetupEligible Prime Members simply download the Key by Amazon App and link it to your myQ account. SPECIFICATIONS Drive Type Chain AC / DC AC Lights Turn On When Entering Garage No Smartphone Control Yes Timer To Close No Motor Power 1/2 HP Battery Backup No Security / Lock No Soft Start / Stop No WARRANTY Accessory Warranty: 1 Year Remote ControlMotor Warranty: 4 YearsParts Warranty: 1 YearChain Warranty: 1 Year