XNET Claws Wireless Tattoo Machine Rotary Pen Battery

This tattoo pen battery capacity is 1800 mAh, 5V-12V adjustable voltage, can support long-term tattoo work, output stable.Long press the voltage adjustment buttons, the adjustment interval is ±0.5 gear.The adjustment interval of short press the buttons is ±0.1V. The side of the battery has visible LED screen show the working voltage, working time and remaining power.