Surface and Materials

There are two color options for all Kain models. The Kain 120 is black, and the 122 is white, and the other two Kain mice follow the same principle.


Almost the whole upper body and the sides are coated in a new kind of matte UV-coating that is rather soft to the touch. It doesn't seem to collect fingerprints, which is great news. There's a shiny inlay in the top middle part, which looks like brushed aluminium, but I'm fairly sure is just plastic, which is good since aluminium weighs a lot more. The scroll wheel has a heavily textured rubber surface, and the CPI button feels like it's made out of silicone.


As mentioned already, the sides don't feature a different surface coating, which isn't an issue for me. This UV-coating is grippy enough for the mouse not to slip out of my grasp, and my hands can get quite sweaty. The bottom plate and front area is plain matte black ABS plastic, just like the side buttons—these have some sleek-looking glossy inlays in the middle for design purposes, though.

Build Quality

Build quality is pretty much perfect. When I first got my hands on the mouse, I could hear quiet creaking sounds upon pressing down on the side panels with great force, but these disappeared with use. Please note that mine is a pre-production review sample, and according to ROCCAT, they have eliminated this issue entirely on the retail models. Apart from this, everything else is just fantastic as there is not a single rattle from the Kain 120 and everything is aligned perfectly. The internals are very well put together, too, and I didn't find any poor solder joints, either.

Weight

The Kain 120 AIMO weighs about 92 grams with a few centimeters of cable, which is a good average for a mouse with such dimensions. It actually felt much lighter than it is in my hands (I'm used to a slighty modded G PRO Wireless that only weighs 75 grams). It is very well balanced too as the internals are placed in a well-thought-out way.