1. Power on: press and hold the power button for about 1.5 seconds ; after power on,the working indicator light up blue.

2. Power off: short press the power button.

3.Use the adapter to work: one end of the USB cable is connected to the product, the other end is connected to the USB adapter, long press the power button to start the work.   Note: the current of USB adapter cannot be less than 1A.

4. Charging: connect USB cable for charging, indicates charging light up red; The green light indicates the end of charging.