The Noir Rotary Pen is a machine that can dual use, It is compatible with wireless battery and RCA cord. Customized motor speed 8V/11000 Rpm, suit for all tattoo types. Machine frame are made from solid rods of high grade aluminum then polished and anodized, laser engraved logo. The grip is safe to be sterilized in an autoclave. Rotate the grip to remove it or adjust needle depth.Special mechanism makes a good direct hit together with enough softness. Perfect machine for all kind of works. Lining, fine dotwork, color parcking, shading, black and grey realistic.Specifications: Machine Weight: 120g/143g Battery Weight: 34g Battery Capacity: 2000mAh Machine Length:99mm/136mm Diameter: 30mm Stroke: 3.5mm Speed: 8V/11000Rpm