Features: Applications support, mobile phone application Smart-Life. Timing function, you can set the hours to turn on lights, boil the water etc and turn on the fans in office. Group management, set all of your smart switches in group by Smart-Life application, and then one click to turn/off all of your appliances or lightings by smartphones. Supports remotely turn on or off connection electrical appliances, such as lamps, electric kettles, rice cookers, electric curtains, garage door, etc. Easy share function can invite family members to enjoy remote control and enjoy the convenience and joy of intelligent home together. Support voice control, home voice assistant control, mobile phone APP-control, and multinational language control. Specifications: Material: Plastic Size: Mixed Size Name: 2CH RF433 WiFi Switch Modules Power Input: AC-DC 7V-32V Current: up to 10Amp Wireless iEEE: 802.11 b/g/n Frequency: RF433.92MHz Package Includes: 1x 2-channel Smart Switches Modules note: Please allow 0-1cm error due to manual measurement. Please allow for slight color difference due to different display resolution.