AVA GT WIRELESS PEN EP9 GRAY

Details:

Battery type: 2×18500 Lithium-ion
Battery voltage: 3.7V
Needle protrusion：1.5-5mm
Power intake: 5W
Rated capacity: 1900mAh
Charging input: 5V/1A
Charging t ime: 3-4 hours
Usege time: 4-6 hours
Adjust voltage by angle of the machine!!!