Descriptions:  TOWICB-80 4P WiFi Circuit Breaker Remote Control by eWeLink APP Voice Control With Amazon Alexa Google Home 72mm Din Rail Main Switch.    Manual:  Hello welcome to use TONGOU Wi-Fi mini circuit breaker.  Download 'eWeLink ' APP.  Scan a QR code, or search 'eWeLink' on store.    Safety warning:  1.In case of electric shock, When installing a product Can’t be operated when the power is on.  2.No short circuit to ground with fire wire or test the performance of the product.Where the zero line collides with the fire line.  3.When installation ,wring screws should be tightened, the conductor not loose selection of traverse sectional area strictly according to requirements.  4.No wet had operation of circuit breaker, otherwise, electric shocks could happen.  5.The protection characteristics of circuit breaker are set by the manufacturer do not allow arbitrary disassembly and adjustment.  6.This product can not protect against personal shock, line over voltage and equipment leakage.     Wi-Fi energy saving magnetic retention switch circuit breaker:  1)After the switched on, the indicator light is red, Press the key button until it becomes a green light and scintillating slowly flicker.  2)Press the button for 5 seconds until the green light is converted from slow flash to fast flash, then turn on APP (Fast Mode TOUCH) and click on the next step of the mobile phone APP to find the device, registration, pairing success.     Package included:   1 x 4P WiFi Circuit Breaker.