SONOFF 4CHR3 is a 4-gang Wi-Fi Smart Switches designed to give you the ability to integrate smart control into your existing home to enable a smart home.Smart switch has 4 gangs that can be used to control lights and other home appliances at the same time in four areas of your home.Remotely control connected lights or devices via APP3 working modes with self-locking, interlock and inching mode for even remote control garage door and roller blindsSupport scheduling a timer to make devices automatically start and stop to workCustomize smart scenes to make the device connected with the switch to trigger other devicesShare the control permission of devices to other accounts to control togetherCheck real-time ON/OFF status of devices on your mobile phonePower on state allows users to set the On/Off/Keep status for the connected device before power failure and ensure it remains the arranged status after power restoration4CHR3 SpecificationsVoltage Range: 100-240V AC 50/60HzMax. Load: 10A/2200W/Gang 16A/3500W/TotalWireless Frequency: WiFi 2.4GHz Wireless Standard: IEEE802.11 b/g/n 2.4GHz(2400M-2483.5M)Security Mechanism: WPA/WPA2Enclosure Material: PC V0Gang: 4Dimension: 145*90*34 (mm)Operating Temperature(recommended): -10?C-40?C(14°F-104°F)Operating Humidity: 5%-95%RH, Non-condensingShare the control permission of devices to other accounts to control togetherhttps://sonoff.tech/product/diy-smart-switch/4chr3-4chpror3/