Material: Aircraft Aluminium

Working mode: Shader or Liner

Stroke：3.5mm

Battery type: 18500 Lithium-ion

Battery voltage: 3.7V

Needle protrusion：1.5-5mm

Power intake: 5W

Rated capacity: 1900mAh

Charging input: 5V/1A

Charging time: 3-4 hours

Usage time: 4-6 hours

Adjust voltage by angle

Most important thing before using EP9 pen is that put the battery into the pen correctly!!!