12 Months Warranty Details: Brand: Soulnova Stroke:2.5mm Pen Net Weight : 105g Pen Length : 137mm Pen Diameter : 22mm Needle Portrusion: 0-3.5mm Working Frequency: from 60-190NPS Voltage :4.5v Min-11v Max Charging Input: 5V/1A Type-C cable Charging Time: 2-3h Battery Capacity: 700mAh Working Hours: 3h-7h Eyebrows eyeliner: 110NPS/7.0V Lip contour shading: 120NPS/7.5V Delicate hair: 130NPS/8V Niple camouflage: 140NPS/8.5V