Function APP Remote Control Use the App to control your device on and off from anywhere with your phone. RF433mhz Control The device can be controlled by the RF433mhz Remote Controller.(Learning Code) Voice Control You could voice control the device by Alexa/Google Assistant. Smart Linkage Intelligent linkage with other smart devices Timing function Lying in bed without turning off the lights fell asleep, it does not matter, the wall switch timing function to the point of turning off the lights, from the lights off do not worry about. Three Working Modes Self-locking, Interlocking, Jog What can I use it for? *Connect a light, remotely control the switch of the light.Connect a light, remotely control the switch of the light, and can also switch on and off regularly 19:00 On 21:00 Off *Open your curtains regularly 7:00 *Connect garage doors for remote control of garage opening and closing *Change the water for the fish tank regularly *Use mobile phone or voice control Garage door switch *Control your heater remotely *And your coffee machine *Connect a water pump, remote control or timer switch More functions waiting for you to discover. DIY Specifications: LEDs: 3 LEDs(indicate working mode, wifi status, relay on/off status respectively) Supports to control different voltage ranges USB port power supply more convenient Board consumption: