Color: Grey Compact, professional tattoo pen kit designed for stable rotary performance and flexible use in studio or mobile settings. Key benefits Stable, lowvibration operation that supports precise lines and shading. The vertical discbearing motor delivers consistent torque and reduced resistance for smoother needle motion. Two power modes for uninterrupted work. Use the included replaceable 18500 batteries or convert to wired operation with the RCA cover and foot pedal option to keep one battery charging while using the other. Clear, realtime monitoring. The builtin LCD shows working voltage, elapsed time, and remaining power, with a lowbattery flash reminder when power is below 20 percent. Portable and userfriendly. Lightweight, ergonomic body with easy assembly and a twistadjustable handle to change needle depth quickly. Performance and compatibility Stroke length: 4.0 mm for versatile lining and shading. Voltage range: adjustable from 5V to 12V to match different needle techniques and cartridge types. Charging and runtime: full charge in about 1 hour; typical runtime 8 to 12 hours on a full battery. Needle compatibility: works with all standard cartridge tattoo needles. Needle depth is adjusted by twisting the handle for fine control. What is included 1 tattoo pen (Grey) 2 rechargeable and replaceable 18500 batteries and 1 charging base 1 charger cable USB fastcharging data cable 5 tattoo needles including 1205RM, 1207RM, 1203RL, 1205RL 2 tattoo bands 1 RCA adapter 1 small carrying case Use scenarios Session work in a studio: Set voltage between 7V and 12V for lining or shading, monitor runtime and voltage on the LCD, and swap batteries between sessions for continuous operation. Onlocation or convention use: Operate cordless on battery power for up to 12 hours, then switch to wired mode with the RCA cover and foot pedal when a power source is available. Training and practice: Lightweight and easy to assemble, with adjustable needle depth and full compatibility with standard cartridges for learners refining technique. Practical features Low noise and reduced vibration for less hand fatigue during long sessions. Twisttoadjust handle for quick needle depth changes without additional tools. Visible LCD feedback for voltage, working time, and battery level to manage sessions and charging needs. Includes spare battery and charging solution to minimize downtime. This grey rotary tattoo pen kit provides flexible power options, reliable motor performance, and clear monitoring to support a range of tattooing tasks from practice to professional sessions.