Color: Rose Red Overview A compact wireless tattoo pen kit engineered for precise, comfortable tattooing. Sturdy aluminum alloy construction, a built in brushless motor, and an adjustable wireless power supply deliver steady performance and long runtime in a lightweight, ergonomic package. Key benefits Precise stroke control: Three interchangeable eccentric wheels provide 2.5 mm, 3.0 mm, and 3.5 mm stroke options for shading, lining, and packing. Fine adjustment helps achieve consistent needle movement. Low vibration and low noise: Brushless motor design and balanced eccentric wheels reduce vibration and keep operating sound between 43 and 46 decibels for a quieter, more comfortable workflow. Long cordless runtime: Built in 2400 mAh lithium battery supports 8 to 10 hours of use per charge for extended sessions without tethering. Comfortable grip and reduced fatigue: Short pen shape and matte finish designed around hand muscle grip position for better control during long sessions. Broad compatibility: Standard cartridge interface works with most tattoo cartridges for easy setup and needle changes. Main features and specifications Kit type: Wireless tattoo power supply kit, color Rose Red. Materials: Aluminum alloy body with electronic components; CNC cartridge carving on pen housing. Power supply: Built in lithium battery 2400 mAh. Input: DC 5V 1A. Output voltage: 4.0 to 12.0 V adjustable. Adjustment accuracy: 0.1 V per step with quick press control. Display: Shows current voltage, remaining battery, and working hours. Charging time: 3 to 4 hours. Do not use chargers higher than 5V. Use time per charge: approximately 8 to 10 hours. Size: approx. 62 x 32.5 mm. Operating noise: 43 to 46 decibels. Tattoo pen: Size: approx. 90 x 28 mm. Motor: Built in brushless motor, 20 x 6 mm. Eccentric wheel stroke options: 2.5 mm, 3.0 mm, 3.5 mm (interchangeable). Needle type: Compatible with cartridge needles. Interface: Standard cartridge interface for secure connection. Craftsmanship: CNC machining for precise fit and finish. Overall design: Lightweight, compact, and durable aluminum alloy construction for both pen and power supply. What makes it stand out True cordless operation with a clear display of voltage and remaining power for predictable session control. Brushless motor plus interchangeable eccentric wheels for stable output, accurate frequency adjustment, and flexible stroke selection. Ergonomic pen shape and matte finish reduce hand fatigue while maintaining a secure grip. Practical use scenarios Lining and fine detail: Use the 2.5 mm stroke and lower voltage settings for controlled, precise lines on small to medium tattoos. Shading and packing: Switch to the 3.5 mm stroke and increase voltage as needed for smoother shading and color packing on larger areas. Mobile or guest work: Compact wireless power supply and long battery life make the kit suitable for on location jobs, conventions, or studio setups where mobility and fast setup matter. Included and compatible Wireless tattoo power supply with built in battery and display. Short tattoo pen with built in brushless motor. Eccentric wheels for 2.5 mm, 3.0 mm, and 3.5 mm strokes. Compatible with most standard tattoo cartridge needles via the supplied interface. Notes Do not charge with a charger higher than 5V. Follow cartridge manufacturer guidance for needles and sterile handling.