It is a tattoo machine that integrates power and the slightly to compete in any tattoo style. Machine equipped with two 900 mAh lithium batteries, which can be charged for 2 hours and can last for 3 hours. The 2 batteries can be replaced so that the time of operating will be ensured. A simple design plus the built-in. Gravity-induced voltage regulator gently tilts the body to complete the voltage, adjustment of increasing and decreasing the voltage. Specifications: Weight: 120g Stroke: 3.5MM Motor: coreless Working Voltage: 4-12 V Speed: 12V/ 10000Rpm Diameter: 22MM Length: 134MM