The Acus M2 comes loaded with new features and upgrades, with the known and trusted torque modes from the M1: letting you change from 6 different settings of torque, choose how hard the machine hits to adjust to your needs. The new mode is the Liner Mode, accelerating the needle on the forward stroke, decelerating on the backward stroke. This creates a faster needle impact while letting the ink more time to settle, giving stronger, bolder and more consistent lines. With the upgraded battery, from 2000mAh on the M1 to 2600mAh on the M2, you can run for longer before charging or swapping battery. The controls have also been improved to a button feel touch screen on top with a 4 way movement based selection, which is glove and sleeve compatible. Another upgrade is a vast selection of presets to choose from to adjust the machine, and three presets you can save yourself. Acus have also added a runtime clock, so you can keep track of your hours much easier. Cleaning your machine has also never been easier; no more specialised tools to take it apart! The M2 is fully dismantlable without tools, letting you swap between the three provided stroke cams quickly, for quick swapping to 3.7mm, 4.1mm and 4.5mm strokes. and can be autoclaved or put into an ultrasonic cleaner. Maintenance made simple. Compatible with all Acus grips, Acus cams and standard cartridges.