Unio Pen-Style Rotary Tattoo Machine with Adjustable Stroke Length in Black by Cheyenne The Cheyenne Hawk Unio Pen combines the soft shading power of the Hawk Spirit and the bold lining power of the Hawk Thunder. In fact, the Unio can handle any tattooing style or technique. It’s the first Cheyenne machine to offer on-the-fly stroke adjustments with a simple turn of the stroke knob. Line, shade, or color pack with a stroke range of 2.5mm up to 4.0mm. Key Features: Durable pen-style machine Ideal for any tattooing style: lining, shading, color packing, and beyond Easily adjustable stroke length on the fly; just turn the adjustment knob Flexible, lightweight, and easy to handle Easy to cover and protect Efficient cartridge change and replacement Use with Cheyenne power supplies + standard power supplies Compatible with all Cheyenne disposable grips Comes with robust Cheyenne carrying case Technical Specifications: Stroke Length Options: 2.5mm up to 4.0mm Frequency: 60 Hz–140 Hz Smooth adjustable needle depth up to 4.0mm Steady mode allows for consistent force and stitch frequency Continuous, quiet, and gentle operation Roll-free design; lay flat on your workstation counter Manufactured in Germany according to medical standard (ISO 13485) Innovative jack cage for secure plug-in connection Warranty Information: Warranty Information: Cheyenne provides a one-year warranty on their machines. Please contact the manufacturer directly if you experience any malfunctions within one year of the purchase date. **No returns or refunds. Purchase is final sale.**