Precision wireless rotary tattoo pen designed for comfortable lining and shading Key benefits Durable, lightweight construction for comfortable long sessions: precision CNC machined aluminum alloy body provides a balanced feel and reliable handling. Accurate, adjustable power for consistent results: digital controls let you fine tune voltage in 0.5V steps to match needle depth and technique. Portable and easy to monitor: visible LCD shows voltage, working time, and remaining battery so you can keep work predictable and uninterrupted. Smooth, lowvibration performance: custom coreless motor delivers speed with reduced vibration for cleaner lines and consistent shading. Main features Construction: aluminum alloy housing made by precision CNC technology for durability and ergonomic balance. Motor: custom coreless motor rated 12V and 10500 rpm, designed for speed and reduced vibration. Power and controls: adjustable voltage range from 5V to 12V, changed by pressing the plus or minus key in 0.5V increments. Recommended settings: 7V to 10V for lining, 6V to 9V for shading. Display: digital LCD records and displays current voltage, cumulative working time, and remaining battery level for clear session tracking. Charging: wireless design with included fast USB charging cable for convenient recharging between sessions. Grips: includes two extra aluminum grips and two extra silicone grips to suit handling preferences. Package contents 1 wireless rotary tattoo pen machine 1 USB cable for fast charging 2 extra aluminum grips 2 extra silicone grips Use scenarios Professional studio work: precise voltage control and reduced vibration support detailed lining and smooth gradient shading during client appointments. Mobile and convention work: lightweight, wireless design and fast USB charging make the pen convenient for onthego setups and compact stations. Training and practice: visible working time and power level help learners track session length and experiment with recommended voltage ranges for lining and shading. Practical notes Adjust voltage in 0.5V steps; start within recommended ranges and fine tune according to needle type and skin response. The LCD display helps monitor remaining battery and total working time to plan recharges and session breaks. Supplied extra grips let you choose the surface and diameter that fits your grip and technique.