TOUCH SWITCH: Touch the area gently belonging to the black area in the back, the LED will light. Touch it again, the LED will off.

ADJUSTABLE BRIGHTNESS: You can adjust the brightness of LED lights according to your needs. Touch and hold the touch area until you get suitable brightness.

EASY TO CARRY: You can put in your pocket and can also hang on a key, very small and portable.

APPLICATIONS: Applicable for standard USB port such as portable power source, laptop, notebook, desktop computer, etc.