Why Choose This Wireless Tattoo Machine Kit? Wireless tattoo machine combines with wireless tattoo power supply, make it more freely during tattooing. The wireless tattoo power supply has output short circuit protection and input double charging protection. Safe to use. After turning on, the voltage of the wireless power battery will be restored to the voltage at the last use at a rate of 10V/0.02 seconds. Applicable to tattoo cartridge needles that require a high-voltage start. Lightweight, not easy to heat up, suitable for long-term use. Comes with sharp tattoo cartridge needles make it easy and quick to color, skin lesions is smaller. This wireless tattoo machine is suitable for all standard tattoo cartridge needles on the market. What Does Wormhole Tattoo Gun Kit Include? 1 × Wireless Tattoo Machine Pen 1 × Wireless Tattoo Power Supply 8 × Colorful Tattoo Ink 20 × Tattoo Cartridge Needles (5 × 3RL, 5 × 5RL, 5 × 5M1, 5 × 7M1) 1 × Tattoo Aftercare Cream 1 × Tattoo Wrap Bandage 40 × Tattoo Caps With Base (20 × 8mm Tattoo Caps, 20 × 12mm Tattoo Caps) 1 × Tattoo Practice Skin 2 × Disposable Glove (A pair) 1 × Tattoo Transfer Paper 1 × User Manual Frequent Question & Answer Q1: Can you use this tattoo pen with other ordinary power supplies which need a cord? A1: Yes. This tattoo pen kit also comes with an RCA cord, which allows you to connect it to any other tattoo power supply. Q2:What can you do once the wireless tattoo battery stops working? A2: Please check if the battery is still powered. If the power supply shows the electricity but still doesn't work, please try to charge it for a while to reactivate the battery. If it doesn't work, please tell us this issue for help. Q3:Which extra cartridges can you order for this wireless tattoo gun kit? A2: This wireless tattoo machine is suitable for all tattoo cartridge needles.