The DRAGONHAWK Extreme S2 rotary machine is much quieter and vibrates less than conventional tattoo devices. But it still has high puncturing power and frequency. Compatible with standard and cartridge tattoo needles. Rotary Machine retains the benefits of a coil machine, including compatibility with standard needles, and a smooth, stable performance even when used with low voltages. This machine has a voltage range of 4 up to 8v; running the machine at a voltage higher than the recommended range may result in vibration and ink spitting. The machine has a Tokyo-designed and China-produced motor with reliable bearings and brushes. The machine is designed for versatile performance, able to accomplish lining, color packing, and shading work. It can be used for traditional realism, newschool, black work, oriental dotwork, letterings, and beyond. Specifications: Weight: 130g Stroke Length: 4mm Principle: Direct Drive Motor: Japanese Motor Speed: 8V/9000Rpm Suggest Voltage: 6-9V