[1]The-2 features a backlit digital display, touchscreen, and colorful LEDs that indicate current voltage range.[2]Adjust voltage between 3-16 volts by 0.1v increments with precision regulated voltage output so you can fine-tune your machine with unparalleled accuracy.[3]Dual output so artists can seamlessly switch between liner and shader tattoo machines. External foot pedals can only be used when running one machine.[4]Smart Pedal technology allows artists to pick between two foot pedal modes: momentary (conventional) or maintained (toggle on or off). Foot pedals are not required for use.[5]Built to last using CNC-machined anodized aluminum and transparent polycarbonate. Anti-slip base with built in magnets for easy mounting. Advanced digital microprocessor regulates voltage output with unparalleled accuracy.Plug Type: US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the United States, the Philippines and so on.Colour:blackMaterial:aluminumSize: 3.5 x 7.5 x 7.5cmPackage Contents:1 x Tattoo Power Supply1 x Power adapter1 x power cableOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is 1-3cm.