1. Remote Turn on/off: It can be controlled remotely by mobile phone anytime and anywhere, just by turning on GPRS signal. Turning your existing WiFi network and garage door opener into an single integrated smart device, then you can open & close your garage door by a simple clicking on your smartphone.2. Timing Schedules: You can set schedules and timers to open & close your garage door. Manage your garage door easily. 3. Voice Control: It can achieve voice control for Amazon /, for Google Home/Nest IFTTT, very convenient. 4. Device Sharing: You can share it to your family and friends or visitors, OF COURSE, you can take back the permissions at any time.5. History Record: You can check the garage door opening or closing history records on your APP to ensure the safety of your garage. 6. State Feedback: The operation can be feedback in two directions, that is, the state of the device on and off can be displayed on APP in real time.Easy Installation: 1. Power up the device with DC 5V adapter and USB cable. 2. Connect the Red & Black wires to your garage door opener: Put each end to the same terminals as the wall button wires are terminated to. 3. Connect the sensor and install steady on the garage door with screws/stickers/bracket and so on. 4. Control the device on your smart phone.This product is a WiFi smart switch supports remotely control your garage door opener and monitor the door at any time and anywhere in the world via APP on your Android/iOS mobile devices. It features voice control for Amazon and for Google Home IFTTT, device sharing, and you can also set timers to turn on/off your garage door, which makes your home smarter.Colour: Blackmaterial: plasticAPP: For eWelink APPPower Supply: DC 5VInput Current: 500mALoad Power: 1000WStandby Power Consumption: 2.5WWireless Standard: IEEE802.11b/g 2.4GWireless Type: Only 2.4GHz, not support 5GMobile Phone: For Android & IOSVoice Control: SupportInstallation: with Adhesive TapeSensor Wire Length: 5MAction: 3-15mmWorking Temperature: -15 ~ 80Item Size: Approx. 44.13 x 23.14 x 59.54mm/1.737 x 0.911 x 2.34in (L x W x H)Package Included:1 x WiFi Smart Garage Door Switch1 x 2.5 2P Wire1 x USB Cable4 x Adhesive TapeAttention: Sensor with Cable are not included!!!Note: Below are checklist before using the device!1. Your smart phone or tablet should have connected a 2.4G WiFi with internet.2. The device only supports 2.4G Wi-Fi. If you use a (it provides two WiFi signals: 5G and 2.4G), please select the 2.4G WiFi to connect your smart phone3. Download and launch the eWeLink App . Create an account or log in with your eWelink account.4. During pairing process, make sure that your iOS or Android device and the -DC5 are within the range of your WiFi router.Only the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.