Mini tattoo wireless power supply

Description

1. w-li power supply for LED digital display the integrated lithium batteries can be recycled for high efficiency and energy savings, charging for about 3 hours, with motor for about 5 to 8 hours.

2. Long press + 0.8 seconds key to start, long press 0.8 seconds key to turn off, + -key each time the speed of 0.1 V.

Charging method: USB