100% Remotely open the garage door for trusted people when there's nobody at home. Remotely control the garage door when you're coming home soon. Simply control your garage door via eWelink APP. Works perfectly with Alexa, Google Home. Device Sharing: You can share access with family, friends, or visitors. You can revoke permissions at any time. History Record: Check the garage door opening and closing history in the app to ensure garage safety. Specifications: Plug model: USB plug not included Shell material: ABS Wireless Standard: IEEE802.11b/g/n Wireless Type: 2.4GHz only, not compatible with 5GHz networks Rated current: 5V 1A Compatible with: Alexa, Google Home Mobile Phone APP: eWelink for Android & iOS Package Included: 1 x WiFi Smart Switch Garage Door Opener 1 x Instruction Manual 4 x Stickers Note: The device requires a 2.4 GHz Wi-Fi connection and can be installed quickly and easily without professional help. It is compatible with most garage door openers (please check compatibility with your specific opener).