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 with Alexa and Google Home. Device Sharing: You can share access with family, friends, or visitors, and revoke permissions at any time. History Record: Check the garage door opening and closing history in the app to help ensure garage security. Specifications: 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 Color: Black + Gray Material: Aluminum Alloy Package Contents: 1 x WiFi Smart Switch Garage Door Opener Note: Other items not included. Note: Light reflection and different displays may cause slight color variation between the image and the actual item. Measurement error allowed is +/- 1-3cm.