1、ERGONOMIC DESIGN: Wireless tattoo pen is designed with ergonomic considerations, providing a realistic grip and feel similar to holding a real pen. The anti slip groove ensures excellent grip, preventing hand fatigue and ensuring a secure grip even when sweating. 2、COMPATIBILITY: Cartridge tattoo pen machine compatible with 99% of tattoo needles available in the market, which offers versatility and compatibility for tattoo artists. 3、PRECISION AND DURABILITY: Made with precision CNC machining from aluminum alloy, this tattoo pen is durable and has a long lifespan, ensuring consistent performance over time. 4、WIRELESS AND PORTABLE: With its precise wireless tattoo pen drive system, there are no external power supplies, foot switches, or clip cords required. This allows for free and flexible tattooing in any location or situation. 5、POWERFUL: Equipped with a strong coreless motor, this pen allows adjustable voltage from 5‑12V, 1A output with 9000±10% RPM at 8V, providing sufficient power for lining, shading, and coloring. 6、FAST CHARGING: With a 1300mAh large capacity battery, it offers long battery life and can work continuously for 4‑6 hours, making it suitable for large scale tattooing. Item Type: Wireless Tattoo Pen Material: Aluminum alloy, electronic components Size: Approx. 144 x 32mm / 5.7 x 1.3in Battery: Built in lithium battery 1300mAh Craftsmanship: CNC integrated carving Stroke Length: 3MM Motor: Coreless motor Battery Interface: Type C interface (USB C) Input Voltage: DC 5V 1A (Do not use chargers higher than 5V to avoid damage) Usage Time: The maximum battery output current is 1A, can work continuously for 4-6 hours Charging Time: Fast charging, takes about 3 hours to fully charge from zero Working Voltage Range: 5-12V Voltage Adjustment Precision: Short press for 0.5V, long press for quick adjustment Speed: 9000±10%RPM at 8V Structure: Integrated lithium battery pen structure, built in lithium battery, removable battery component Display Screen Content: Current voltage, remaining battery level, timer Needle Compatibility: Compatible with 99% of tattoo needles available in the market Machine Features: Adjustable needle length, LCD display screen, long lasting battery life, removable design Note: When the machine is not in use, the screen will automatically turn off after 10 minutes. Press the power button to turn it back on. 1 x Wireless Tattoo Pen 1 x USB Charging Cable