How the Bluetoothgateway to work It is a mini Smart Gateway that Tuya develops. It consists of a highly integrated Wi-Fi module, low power-consuming Bluetooth module, and PCBA. It can be connected to the Tuya Smart app for device adding, reset, control, and Bluetooth group control, meeting smart home requirements More stable create a smart Bluetooth solution will be more stable than WiFi solution, and can connect with many smart home device. More safe and easy to control smart device on the APP Gateway transmission via Bluetooth solution, will be more faster between gateway and smart device. Wireless and remote control with Wifi and 4G Add device on the APP, and create smart group, and linkage with smart scene. Easy to setup, Easy to work with smart home device. Material: abs colour: White Package Contents: 1 x Gateway 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.