Charmant Premium Digital Device For Permanent Makeup Machine Aluminum material is stable with less vibration and not easy to leave fingerprints or sweat stain, which is easier to grip and operation. Built-in mute system and fast to color, which can relieve customer's emotional tension and pain and let the tattoo work be operated fast and conveniently. Aluminum material pen, smooth and durable. UP and Down buttons for speed adjusting, easy to control. LCD display clearly shows the working mode and speed.