Chamberlain Smartphone Controlled Wi-Fi Garage Door Opener With Battery Backup & Ultra-Quiet Operation $199 (Reg $249) + Free Shipping. This MyQ Smartphone-Controlled garage door opener with built-in Wi-Fi gives you complete peace of mind by allowing you to monitor and control your garage door from anywhere. With Wi-Fi built-in, this opener connects directly to your home’s Wi-Fi network to provide Smartphone Control. No additional hardware is required. The battery backup feature allows for three days of use when the power is out. The extra-powerful motor is perfect for very frequent use and the durable, ultra-quiet Whisper Drive is ideal when the garage is located near a bedroom or living area. You’ll also enjoy the added convenience of a wall control plus light switch that detects motion along with an LCD display for time, temperature, and diagnostic information. Lowest Price it's ever been and very highly rated.