Features: Supports WiFi network. Supports numerous WiFi smart switches on one smart phone.Supports status tracking: device status provided to the EWeLink.Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electric curtain, etc.Supports max 8 enabled scheduled/countdown/loop timers for each device. Voice Control: Compatible perfectly with "Amazon" , for Google Home/Nest, IFTTT.RF Function: Supports controlled by 433MHz RF Remote Controller. Share Control: Control your with your .Specifications:Working voltage: 85-250V ACIndicator: With a signal indicator, relay pull the lighSupports to control different voltage rangesUSB port power supply more convenientBoard consumption: Less than 1WStandby current: 80mAStandby power: Less than 0.5WInput current: 16A; Wattage: 3500WRelay lifespan: 1000000 Electrical insulation resistance: 100MElectric shock voltage: 1000VRelay maximum suction time: 15msRelay maximum release time: 5msWorking mode: inching /-, InterlockTransmission mode: Wi-Fi communicationWireless Standard: 2.4GHz, 802.11 b/gMobile App: EWeLink on Android/for IOSApplicable occasions: . Wifi controlOperating temperature: -40 degrees to +70 degreesOperating Humidity 40% ~ 80% RHMaterial: ABScolour: WhitePackage Contents:1 x Smart Switch1 x Sensor1 x remote control (without CR2032 battery)Only the above package content, other are not included.Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.