How to Use:
1, Connect the vest with your power source.
2, Press silicon button for more than 3 seconds till the button light. The light will stop at Red (high level), means it starts working.
3, Press silicon button to select the heating temperature, Red light-High, Blue light-Medium, Green light-Low
4, Turn off the heater: Press silicon button for 3 seconds, LED light off means the heater turn off. Or you can just unplug it simply.
(Note: The vest must be plugged into the power source when you need it to work. As there's NO build-in battery)