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. 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. Support forgot-off reminder (Such as Push a message if it's not closed for more than 5 minutes). Specification: Voltage: DC 5V/1A Size(LxWxH): 50x50x23mm/1.97x0.90inch Material: ABS Package Includes: 1x Intelligent Garage Door Controller 1x USB Cable : Please allow 1-3 cm/ 0.39-1.18 inch 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!