Product information:

Product name: W2 wireless battery pen
Size: 140mm*35mm
Weight: 238g
Output voltage: 4-12V, 0.1V regulation
Motor: Cup motor hollow/12V-12000RPM
Display: OLED-0.66 inch
Battery capacity: 1700mAh
Working time: about 8 hours/8V
Charging time: about 2.5 hours
Charging interface: TYPE-C/5V/2A
Stroke: 3.5mm

Instructions
1. Connect the battery compartment clockwise to the motor section and adjust the length of the pins.
2. Power-on/power-on pause: long press or double-click the power button to power on in the off state, then press the power button to power on, and then press the power button to power off.
3. Shutdown: Press and hold the power button to shut down when power on, it will automatically shut down if there is no output for 5 minutes, and it will automatically shut down if there is no output for 5 minutes. When the battery power is lower than 5%, it will prompt the battery power is too low, and then shut down.
4. Voltage adjustment: click the + button to boost, 0.1V boost, long press the + button to quickly boost; click the button - step down, 0.1V step down, long press - fast step down; voltage range 4-12V.
5. Synchronization: start synchronization in working state, double-click the power button to clear the synchronization;

Packing list:

1pc wireless tattoo pen
1pc charged cable
1pc gift box

Or

1pc wireless tattoo pen
1pc charged cable
1pc gift box
1pc extra battery