1Liner and shader dual mode, adjustable needle output hardness designs to meet your different needs. 2The machine frame is made of firm aviation aluminum, and the hollow cup motor makes the whole machine lighter and easier to use. 3Ultrahigh rotating rate, under 11V voltage, about 12600 rpm. 4Standard RCA interface, suitable for all RCA plug hook line. 5Light weight and in small size, convenient and practical. 6Help create different styles of tattoo pattern, an important tool for professional tattooists.