【Independently control 4 devices】Just need one SONOFF 4-Gang WiFi smart switch 4CHPROR3 that can make you connect and control four home appliances and electronic devices independently. You can turn on/off the connected lights/appliances via APP or 433MHz RF Remote control. *NOTE: Avoid proximity to other 433MHz devices when matching or using the 433MHz controller to obtain a stable signal. 【3 powerful working modes】SONOFF 4-Gang WiFi smart switch 4CHPROR3 supports 3 working modes with self-locking, interlock and inching mode for even remote control garage door and roller blinds. *NOTE:The switch is Lives and Neutral Wires Required. 【Set 8 time schedules for automatic control 】SONOFF 4-Gang WiFi smart switch 4CHPROR3 can create 8 enabled single/repeat/countdown timers to automatically turn on/off devices at the specified time. And the timers can run themselves even the network is unavailable. 【Powerful functions】SONOFF 4-Gang WiFi smart switch 4CHPROR3 is compatible with Amazon Alexa and Google Home voice control, supports customized smart scenes to allow smart devices connected to the smart switch to trigger other smart devices. Support to view the real-time on/off status of devices on your phone. 【Power on state】SONOFF 4-Gang WiFi smart switch 4CHPROR3 can set the power on state, users can set the On/Off/Keep state for the connected device before power failure and ensure it keeps the arranged state after power restoration. *NOTE:The router must be 2.4GHz (5.0 GHz WiFi is not supported)