Please note that: In order to reach the best performance, we suggest you choose 5V/1A or 5V/2A charger as well as the original USD cable to takes about 10-12 hours fully recharged.
1.2 USB interface
3.with LED lights
How to use LED lights:
The first mode. Double-click the key to open the LED lights, click the button again to become weak light, and finally click the switch LED will be closed
The second mode. Long press the key to open the LED lights, click the key again to turn the flashing mode, click the switch SOS mode again, and finally click the switch LED will turn off