WiFi Smart Garage Door Controller: APP Remote Control, No Hub Required WiFi Smart Garage Door Opener Switch Garage Door Controller APP Remote Control No Hub Require and High Quality Remotely open the garage door for trusted people when there's nobody . Remotely control the gorage door when you back home soon. Simply control your garage door via APP Works perfectly with Alexa, Home. Device Sharing: You can share it to your family and friends or visitors, OF COURSE, you can take back the permissions at any time. History Record: You can check the garage door opening or closing history records on your APP to the safety of your garage. Specifications: Wireless Standard: IEEE802.11b/g Wireless Type: Only 2.4GHz, not support 5G Rated current: 5V 1A Working with: , Home Mobile Phone APP: for Android & IOS Color: Black + Gray Material: Aluminum Alloy Package Contents: 1 x WiFi Smart Switch Garage Door Opener Only the above package content, other products are not included. Note: Light reflection 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.