This 2 gangs Smart Curtain Switch Module is combined with 2 channels smart switch module and 2 gangs smart curtain switch module, working by WiFi and RF tech both. Thanks to its advance design, this curtain switch module has stronger functions than other modules. It can not only switch ON/OFF of curtain / roller shutter / blind, but also lighting and household appliances like refrigerators, water heaters, TV, air conditioner, electric fan etc. Users can smart control your home by Mobile Phone APP, RF remote or smart speaker like Alexa and Google Home.