Feature:  - Bluetooth Gateway Good partner of the sub-device. Bluetooth Gateway supports all Mijia Bluetooth Gateways device. Add them to the same account, to be within the Bluetooth signal transmission range, it will automatically connect, which in turn allows you to remotely from the Mijia mobile app, view status, historical data, or event notifications.  - Work with ClearGrass Bluetooth smart door lock. With the ClearGrass Bluetooth Gateway, you can receive the unlock notification of the ClearGrass smart lock by the Mijia APP Remotely, viewing the unlock,  record security events, checking remaining power, and setting.  - Work with ClearGrass Bluetooth thermometer and hygrometer, remote monitor the status of your home by the gateway.    Specifications:  Plug: AU;  Product size : 62.16×42×31.5rnm;  Product net weight: 46g;  Working temperature: -10 ° C - 40 ° C;  Operating humidity: 0% - 90% RH, no condensation;  Power input: 100-240V, 50/60Hz, 0.2A;  Wireless connections protocol: Bluetooth 4.2;  Wi-Fi: IEEE802.11b/g/n 2.4GHz;  Executive standard:  GB176251-2012;  GB4943.1-2011;  GB/T9254-2008;    Package Includes:  1 x Bluetooth WIFI Gateway;  1 x Adapter(according to your country)