Color: Black Dimensions: 2-7/8″ diameter, 1-3/4″ height Weight: 0.3KG Output Voltage: 1.5v – 17v Compatible with all coil and rotary tattoo machines User-friendly rotary control push knob to turn on/off, switch modes, and change voltage Color changing voltage indicator Two foot pedal modes – maintained or momentary Jump-start mode feature for rotary tattoo machines 1/4″ mono jack inputs for standard clip cord and foot pedal (foot pedal not required to run) CNC-machined anodized aluminum housing Built-in magnets and silicone grips allow for use on a variety surfaces Power adapter include