Cheyenne Sol Nova has a Mode Switch that makes it possible to change power and punch frequency. This machine is compatible with Disposable Grip Ergo One Inch and Ergo Round as well as SOL Nova Grip Steel. Stroke 3.5 mm ideal for good balance between lines and shading. Stroke 4.5 mm ideal for colour fills and for outlining. Features: Continuously adjustable needle depth (0 – 4.0 mm) Connection: Jack 3.5 mm Voltage: 4.7 v – 12.6 v Motor: Brushless DC Motor Frequency: 25 -150 Hz Size (Ø x L): 33 mm x 99 mm Weight: 150 g Bearing inhibition to prevent the machine from unintentionally sliding Manufactured according to medical standard: ISO 13485 Made in Germany