Wireless rotary tattoo pen machine Key benefits Easy voltage control and clear feedback: builtin visible LCD voltage screen lets you set and monitor voltage quickly for consistent performance. Long cordless runtime and fast recharge: builtin 1500 mAh battery runs up to 8 hours. TypeC fast charging and a spare battery are included for extended sessions. Durable, comfortable build: CNC carved aluminium alloy frame with a onepiece seamless body provides a stable, lightweight grip for reduced hand fatigue. Hand assembled for precise fit and finish. Quiet, powerful motor performance: coreless direct drive motor delivers speed with low noise and stable operation while consuming less energy and staying cool during long use. Wide compatibility and consistent stroke: standard 4.0 mm stroke and compatibility with all cartridge needle sizes ensure accurate needle travel for both lining and shading. Specifications Weight: 171 g Length: 121 mm Diameter: 32 mm Battery: builtin 1500 mAh, up to 8 hours runtime; spare battery included Charging: TypeC fast charge Motor speeds: 6 V = 6800 rpm, 12 V = 10500 rpm Stroke length: 4.0 mm Material: standard aluminium alloy, CNC carved Assembly: hand assembled, onepiece seamless body Protections: overcharge protection, short circuit protection, temperature control Performance highlights speed and stable torque make this pen effective for precise lining and dense shading. Low operational noise and reduced heat buildup support longer sessions and a more comfortable working environment. Direct drive gear system provides smooth, reliable needle movement for even ink transfer across different skin types. Practical applications Lining and fine detail: use lower voltages and the precise 4.0 mm stroke for sharp, consistent lines and intricate work. Shading and color packing: higher rpm settings provide the power needed for smooth shading and solid color packing without excessive passes. Mobile or event work: cordless design, long battery life, and included spare battery make it practical for artists who work on location. What makes it stand out Onepiece, seamless aluminium body for a balanced feel and simplified handling Visible LCD for quick adjustments and repeatable settings Coreless motor and direct drive system for quiet, dependable performance Full cartridge compatibility and a consistent 4.0 mm stroke for versatile technique use This wireless rotary tattoo pen is designed to combine portability, durable construction, and consistent motor performance for a range of tattooing techniques.