Wireless Tattoo Power Supply Mini Power Device RCA/DC Tattoo Machine Rechargable For Rotary Machine Pen Tattoo SupplyOOTDTY  Features: brand new and high qualityWireless tattoo power supply has RCA Connection & DC Connection for your choose according to your tatto machine. Allows rotary tattoo machines and tattoo pens to work without clip cords.Digital dispay be clear at a glance, real time display of digital voltage, let you know the current coltage at any time.Small and mini wireless tattoo power supply is made of plastic, good design, small size, light weight and easy to carry around. You can carry out outdoor tattoo work. It is more convenient to tattoo outdoor.This mini tattoo power supply machine output:4.2-12V. Long press the button to turn ON/OFF, Double click to switch between these voltages.This mini wireless tattoo power supply includes 1pcs Mini Tattoo Power Supply and 1 pcs USB Cable.Specification: Material: ABSColor: BlackPlug Specifications Optional: DC/RCAPackage Weight: approx.55gSize: approx.4.7x3.6x5.6cm/1.85x1.42x2.2inPackage Includes: 1Pc x Mini Power Supply1Pc x USB Cablenote: Please allow 1-2cm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!