Features: [Compatibility] Compatible with most digital locks that have a motor and a driver board with DC12V power supply. Compatible with Echo, Echo Dot, Tap.<br> [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.<br> [APP Control] You can add the device to the APP eWeLink in order to remotely open your door, available on both Android and iOS.<br> [Multi-function] Timing Schedules + Device Sharing + History Record + Works with Google Home, Google Nest + Works with IFTTT.<br> [Note] The device can not connect to 5G-WiFi/mesh WiFi/WiFi hue/WiFi bridge, only 2.4G-WiFi is supported.<br> Specifications:<br> Operating Voltage: 12V DC<br> LED: 1 LED (indicate working mode, wifi status)<br> Wireless Standard: 2.4GHz, 802.11 b/g/n<br> Mobile App: EWeLink on Android/IOS<br> Application: Compatible with most electronic gate locks that have a motor and a driver board with DC12V power supply<br> Operating Temperature: -40 degrees to +70 degrees<br> Operating Humidity 40% ~ 80% RH<br> State of Assembly: Unassembled Kit<br> Model Number: Wifi Switch Wireless Module<br> Compatibility: All Compatible<br> Camera Equipped: No<br> Color: green<br> Material: PCB<br> Package Contents:<br> 1 * Smart Switch<br> 1 * Antenna<br> 1 * adhesive<br> Only the above package content, other products are not included.<br> 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.