RPS-600 Ink Machines wireless power supply is a power station including power supply, 2 batteries for wireless work and wireless pedal. It was purchased 3 months ago from Brett Stewart Tattoo Supply. Practically new, used several times (4-5), in ideal state. It's a fantastic device for Ink Mashines or any tattoo machine with clip cord contacts. It can handle up to six active Powerpacks and charge four. It features a Kick Start mode, which ensures an easy startup at low voltage, and a Boost mode, which gives extra power when you need it. Each battery pack only weighs 65 grams (0.14lbs), but it can still handle the most demanding sessions approx 5 hours of work. Starting each session is incredibly easy – once the machines are rigged with the Powerpacks, the custom settings are recalled when that machine is picked up, ready for use with just a tilt. You can know more here: https://www.inkmachines.com/products/power-supplies/rps-600/rps-600-wireless-power-supply-incl-4-powerpacks Specifications: *Large 2.7” LCD display *Output wireless: 5- 13v; *Output cable: 4- 18v *Powerpack capacity: approx. 5 hours each About one hour charging time *Powerpack battery life: approx. 500 charging cycles Compatible with Dragonfly and Stingray machines *1/4" phono connection fo