App support: Free for iOS and for Android mobile app Tuya Smart/Smart Life. Sync Status: Provides real-time device status to the application. Remote On/Off: Use high-precision sensors to turn on/off electrical equipment from anywhere. Shared Control: Control your smart home with your family. Timing: Supports 8 countdown/single/repeating scheduled tasks to be turned on/off at the specified time. Auto mode: Set automatic mode to turn on/off at specified temperature. scope. Manual Mode: Set manual mode to turn on/off instantly. Trigger smart scenes: Use the temperature value as the trigger condition for smart scenes to trigger the power on and off of other Tuya smart devices. Input voltage:AC 85V-250V Max.Current: 2200W/10A/gang Max.load:3500W/16A/4gang Wireless: Zigbee Tem Sensor Measurement Range:-20- +80 Radio Frequency: 433Mhz Working temperature: -20-70 Colour:White Material:ABS Package Contents: 1 x Smart Switch 4 CH (Without 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.