Mast Tour Pro tattoo machine has custom Mast coreless motor,strong power, light sound, suit for precise line work, black and grey shading, solid color packing. Gives a possibility to pack faster, more quality and less trauma. Perfet tool for tattoo artists. The Mast U1 wireless power supply compatible with all standard RCA rotary tattoo machines. Working: 3-6 hours.This rotary tattoo pen advanced gear system that smooth, soft, and quiet operation, Ideal healing results. Flexible and lightweight for every style Gently and smoothly transfers ink to skin; suitable for all skin types.Kit includes: 1*Mast Tour Pro rotary tattoo machine 2*batteries, USB-C charge cord 20*cartridges grip cover