The Mast Hertz tattoo pen is an outstanding tool for professional tattoo artists. Weighing just 178g and featuring a 36mm grip, it provides both comfort and precision during long sessions. The 3.5mm stroke and motor speed of 10V/9000rpm deliver reliable, consistent performance, perfect for all tattooing techniques—whether you're lining, color packing, or blending. The ability to adjust the frequency from 3-150 Hz makes this a versatile machine. The 1800mAh battery ensures up to 7 hours of continuous use on a full charge, and the fast 2-hour recharge time makes it perfect for back-to-back sessions. The high-resolution color display is intuitive, providing easy access to vital details like battery status and current frequency. Plus, the three-frequency memory function allows for seamless adjustments during your work. Compatible with all standard cartridge needles, this machine is as versatile as it gets. It also comes with a USB-C cable, manual, and an eco-friendly box, backed by a 12-month warranty. This is a must-have for any serious tattoo artist looking for a high-quality, reliable machine. Read more

First I want to say that I love the color scheme of this device. The travel case is also a huge plus. That and the fact that it just works well makes this a total win. Read more

This machine is one of the best machines I own and I love tattooing with it. My only complaints are that the charge time is long and the battery is built in so you can’t just have a backup on deck. Small complaint for a 100ish dollar machine where it’s feasible to just buy a second one because I love the thing that much. Save yourself the trouble and get two out of the gate. Read more

The machine is super lightweight. This is going to make a great liner as there is little to no vibration felt. It runs very quiet and smoothly. my favorite part about it is the voltage range because I can throw it all the way down to 3v for my needs. however, I can throw it lower for dotwork, which is what I do. It has a few different dotwork settings to where it will start slowly to more rapidly. it’s hard to describe, but it kind of works intermittently on those settings. however this is for people who do dotwork style tattooing, so if you don’t do that style, don’t worry about it as you won’t need to ever put your machine down that low. It’s just a bonus for people who do that style like me because you don’t find this feature in very many machines. I love everything about this machine. I have absolutely no cons for it. If you don’t do dotwork style, you can still use this machine. I think it would make a great liner, and I see the versatility for it for other types of tattooing styles as well. I fully recommend it and I believe that the price point that it’s selling for is an absolute steel for the settings and the features that are in this machine. Read more

This Hertz wireless tattoo pen machine is a solid choice and is easy to grip and hold for an extended period. The brushless motor is strong with low noise, and I like the highly adjustable frequency function from 3.0hz to 15.0hz. The Color display is clear to read. The built-in 1800mAh battery has a long run time about three times as long as the charging time, which uses a USB-A to USB-C cable. It would be nice if it was not built-in and a spare would be available though. The carrying case is very protective and handy to store some accessories in the zipper pocket. This is a well-functioning rotary that is a good value for the features and performance. Read more