Always sterilize your hands and tools before setup. Use the right needle and tube, set needle depth to 1–2 mm, and adjust voltage (6–8V for lining, 8–10V for shading). Test on fake skin first. Use disposables when possible and always wear gloves, apply barrier film, and dispose of waste properly.

Wireless tattoo machines offer cord-free flexibility, ideal for travel and mobile work. They run 3–8 hours on built-in batteries and are slightly heavier, but modern designs improve comfort. Suitable for beginners and pros alike, prices range from $240 to $720+.