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 , electric rice cooker, electric curtain, etc. Supports max 8 enabled scheduled/countdown/loop for each device. Voice Control: Compatible perfectly with "Amazon" , for Google Home/Nest, IFTTT. Specifications: Working voltage: 5V DC /7-32V AC DC Indicator: With a signal indicator, relay pull the light Two input interfaces: Wiring input DC5V & USB DC5V Supports to control different voltage ranges USB port power supply more convenient Board consumption: Less than 1W Standby current: 80mA Standby power: Less than 0.5W Input current: 10A; Wattage: 2200W 4 Channel Load: 10A/2200W Single Load: 10A/2200W Relay lifespan: 1000000 Electrical insulation resistance: 100M Electric shock voltage: 1000V Relay maximum suction time: 15ms Relay maximum release time: 5ms Working mode: inching /self-locking, Interlock Transmission mode: Wi-Fi communication Wireless Standard: 2.4GHz, 802.11 b/g Mobile App: EWeLink on Android/IOS Applicable occasions: . Wifi control Control distance: Controlled lines: 2 Operating temperature: -40 degrees to +70 degrees Operating Humidity 40% ~ 80% RH Material: ABS retardant colour: white Package Contents: 1 x Switch Module 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.