The Rocket Tattoo pen is everything you've been wanting and more. Lining, shading, long run times that'll allow you to take your skills to the next level. There's also no wires... Unless that's what you prefer. The pen can easily be hooked to an outside power supply with an RCA jack. Taking your weight down even further. Control, ease of use, and outstanding performance are what we stand behind. We guarantee you'll love this machine, and who knows maybe you'll end up buying them for the whole shop. Here's to your creativity, and take your skills to the next level.