Supports WiFi network. Supports numerous WiFi smart switches on one smart phone. Supports status tracking: device status timely provided to the . Supports remotely turn on or off connected appliances, for example light, electric kettle, electric rice cooker, electric curtain, etc. Supports max 8 enabled scheduled or countdown or loop for each device. Voice Control: Compatible perfectly with "Amazon" Alexa, for Google Home or Nest, IFTTT : 3 (indicate working mode, wifi status, relay on or 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: equal times 100M electrical insulation resistance Electric shock voltage: 1000V Relay maximum pull time: 15ms Relay maximum release time: 5ms Working mode: inching or self-locking Wireless Standard: 2.4GHz, 802.11 b or g Mobile App: on Android or IOS Application: access control, turn on PC, garage door, etc. Computer application: Remote control computer boot Operating temperature: -40 degrees to and70 degrees Operating Humidity 40 percent - 80 percent RH 1channel 1ch DC7V-32V (No RF function) Size: 70.5x27.4x23mm Colour:green Material: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 picture a little different from the real thing. The measurement allowed error is 1-3cm. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.