Wholesale Professional Eyebrow/lip Tattoo Digital Permanent Makeup Machine/Pen    Description:   1) For the Micro Needle Pen       1.Excellent electrical quality;   2.Super capacity of lithium Germany battery;   3.Excellent design and work   4.One hour charging, can work continuously 3 hours;   5.Immediate charge, immediately available;   6.No power cables, creating a new concept of wireless fashion and removing the trouble with the cable when operation. 7.Can fit Micro needle and Tattoo Cartridge needle,Used for skin  beauty and eyebrow/lip tattoo    2) For the Battery       Battery Capacity: 750MAH, 4.2V   Recharge time: 40 minutes   Working time: last for 4 hours   Service life for Battery: 2 years