Mast Archer cordless tattoo machine come with two replaceable grips, easy changed and control. The visible lcd screen display adjustable voltage, running time and capacity The Archer cordless machine has 2,000mAH battery, working 8 hours. Fast charge cord only 2 hours to full charge. This tattoo machine compatible with all tattoo cartridges. Machine had a high quality stainless steel spring inside its body mechanism. Special mechanism makes a good direct hit together with enough softness. Perfect machine for all kind of works. Lining, fine dotwork, color packing, shading, black and grey realistic The grip is safe to be sterilized in an autoclave. Rotate the grip to remove it or adjust needle depth. Clean the tattoo machine frame easily. Seamless frame that protect the inside of the machine. Gently and smoothly transfers ink to skin; suitable for all skin types