Shoulder Light

1. Long press the switch for 2-3 seconds, one side began to work, then click, the other side began to work; then click, two at the same time to work; again click, the illuminating lamp; click, turn off all. Cycle in turn.
2.no matter in any state, long press switch button 2-3 seconds can be shut down, and there is memory function
3.the lamp uses 5V charger, charging when the red light, full of green light.