Description: This is an intelligent garage door controller, you can open/close and monitor your garage door or gate from anywhere. It will make your home smarter. You can open or close the garage door by the APP, and authorize multiple people you trust to access your garage. You can activate your garage door opener by placing a voice Compatible with Amazon Alexa or for Google Home. Can be connected to an alarm and will activate the alarm system when the garage door is opened by a stranger. You can check whether the garage door is open or not on APP without getting out of the car. Quick and easy installation and convenient operation. Specification: Input: 5V/1A Wifi: 802.11 b/g/n 2.4g (supports distribution network, that is, you can solve the problem of dual-band integrated router) Product size(LxWxH): 51x51x22mm/2x2x0.86inch Package Includes: 1x Intelligent Garage Door Controller 1x Set of Mounting Accessories Note: Please allow slightly 0-1cm difference due to manual measurement. Colors can appear different depending on light and how the listing is viewed. Thanks for your understanding and attention. Wish you a pleasant shopping experience!