The AVA UNI A Wireless Tattoo Pen is a compact, high-performance machine crafted from aircraft-grade aluminum for durability and lightweight handling. Equipped with an AVA OEM metal brush DC motor, this pen delivers consistent power with a 10500 RPM speed and 5W power consumption, making it ideal for both shading and lining. Featuring the popular 4.2mm stroke length, the UNI A ensures smooth, controlled application across a range of tattooing techniques. The needle protrusion is adjustable from 0mm to 5mm, allowing artists to fine-tune their depth settings for precision work. A 1600mAh 18500 Lithium-ion battery powers the device, providing reliable performance in a compact form factor. The HD OLED screen displays real-time voltage, frequency, and power levels, while the adjustable anti-slip grip enhances stability and comfort. Key Features: Material: Aircraft-grade aluminum for lightweight durability. Motor & Speed: AVA OEM metal brush DC motor, running at 10500 RPM for smooth performance. Power Intake: 5W for efficient energy consumption. Stroke Length: 4.2mm, providing versatility for shading and lining. Needle Protrusion: Adjustable from 0mm - 5mm for precision control. Battery Type & Capacity: 18500 Lithium-ion, 1600mAh, delivering reliable power. Compact & Lightweight: Measures 1.3" x 4.3" inches, weighing 0.52 lbs (with battery). Advanced Connecting Rod System: Improves stability and power transmission. HD OLED Screen: Displays voltage, frequency, and power levels in real time. Adjustable Anti-Slip Grip: Enhances handling and control for detailed work. Easily Replaceable Battery: Allows for uninterrupted operation. Package Includes: 1 UNI A Short Wireless Tattoo Pen (4.2mm Stroke) 1 Battery Charger with Charging Cable 2 Spare 18500 Lithium-Ion Batteries 1 Carry Case