Check the listing for details. Wireless tattoo machine DUKE from AVA (black). Color: Black, Condition: New. Listed at 112.62 USD. DUKE - a cordless machine from AVA. The body of the machine is made of aircraft aluminum. The removable holder allows for better sterilization of the machine. Inside the machine there is a carbon brush motor (3.5 W), which provides power up to 9000 rpm. The battery with a capacity of 2200 mAh allows you to work for more than 4 hours, depending on the selected power. On top of the machine there is a screen that displays the operating voltage and charge level. Also on the top panel there are 3 buttons - one for turning the machine on / off, and two for changing the voltage. The needle stroke is 3.5 mm, and is suitable for all types of tattoo work. Specifications:Motor: up to 9000 rpmOperating voltage: 4.5-12VNeedle extension: 0-4.5 mmNeedle stroke: 3.5 mmBattery: 2200 mAhSize: 144*34 mm