Features: [Compatibility] Compatible with most digital locks that have a motor and a driver board with DC12V power supply. Compatible with Amazon Echo, Echo Dot, Amazon Tap. [Easy Installation] The installation is a 5-minute thing, after that, you can use your smart phone to open your door from anywhere. Installation instructions included. [APP Control] You can add the device to the APP eWeLink in order to remotely open your door, available on both Android and iOS. [Multi-function] Timing Schedules + Device Sharing + History Record + Works with Google Home, Google Nest + Works with IFTTT. [Note] The device can not connect to 5G-WiFi/mesh WiFi/WiFi hue/WiFi bridge, only 2.4G-WiFi is supported.