Ambition is a professional tattoo supplies manufacturer, we focus on the quality of the tattoo machine and the actual good operating experience, provide high quality service and product for the tattoo artist. About Tattoo Pen: Condition: Hundred percent new Material: high hardness aluminum alloy material Size: Tattoo machine with power total length:165mm/6.49inches, total weight:211g/7.44oz, diameter:32mm/1.25inches Custom brushless motor speed:12V / 10000RPM The simplicity and portability opration of Ambition wireless tattoo power will help you to conquer your tattoo. About Tattoo Power Supply: Material : aluminium alloy+high quality insulating plastic+silicone keys. Connector :RCA Battery Capacity: 2200mAh Charging time : About 2-3 hours Operation time : Under normal 8V voltage, the voltage stable state can last about 10 hours,long time working the voltage is stable. Output voltage : 5-12V, ±0.1V LED display content: voltage range + battery usage+hertz+working time Instructions for use: Power ON/OFF: Long press "O" key for 3 seconds Output pause / resume: Short press "O" key to pause the output, and short press it again to resume the output (the resume voltage is the working voltage before the pause). Adjust output voltage: Press the "+" or"-" key to adjust output voltage. Power: The LED display will show the remaining power, and the full power will display 4 divisions. Fast charging through the matching fast-charging cable can usually be fully charged in 2-3 hours. Please pay attention to the change of power at any time to prevent sudden power loss from affecting your tattooing work.