Seamless Tattoo Pen Machine Ergonomic, lightweight pen-style machine. This machine features a powerful motor and an advanced gear system, quiet operation without any vibration. Safe lightweight tattoo pen machine. Lightweight Cordless Tattoo Battery Built-in short circuit and leakage protection. Design by Dragonhawk factory team with power saving mode that use S4 tattoo pen up to 10 hours. Dragonhawk cartridges 100% E.O Gas Sterilized and individually packaged. Smooth edges eliminate additional trauma. Needles made of 316 medical grade stainless steel. The Dragonhawk S4 tattoo pen machine is super lightweight only 85g, slim grip 25mm hand-friendly, compatible all rca jack cordless battery, Powerful motor by Mast coreless 12V/12000rpm, much quieter and vibrates. S4 tattoo pen has 3.5mm stroke length, allowing a tailored tattooing experience to accomplish a wide variety of styles and techniques, well-rounded rotary tattoo machine designed for utmost accuracy and control. Emulating the grip and feel of an actual pen, this machine allows for more comfortable and precise tattooing procedures. Dragonhawk B1 cordless battery is super lightweight tattoo battery only 40g, work last 6-12 hours.Type-C usb input ports equipped with Dragonhawk's PowerIQ and Voltage Boost technology ensure high-speed charging Dragonhawklabs tattoo cartridges needles reliable for all-purpose work. One piece needle and plunger overmold allows for maximum stability and control. Ethylene oxide (EO) gas sterilized and individually packaged; single use only.