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 : 3 (indicate working mode, wifi status, relay on/off status respectively) Supports to control different voltage ranges USB port power supply more convenient Board consumption: Less than 1W Standby current: 80mA Max input current: 10A Max Wattage: 2200W Relay lifespan: one 100M electrical insulation resistance Electric shock voltage: 1000V Relay maximum pull time: 15ms Relay maximum release time: 5ms Working mode: inching /self-locking Wireless Standard: 2.4GHz, 802.11 b/g Mobile App: EWeLink on Android/IOS Application: access control, turn on PC, garage door, etc. Computer application: Remote control computer Operating temperature: -40 degrees to +70 degrees Operating Humidity 40% ~ 80% RH 1channel 1ch DC7V-32V (No RF function) Size: 70.5x27.4x23mm Colour:green :plastic Package Contents: 1 x Wifi Switch Relay 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.