Build Quality

Overall build quality is subpar. When shaking the mouse, a noticeable rattle comes from the CPI button. When applying lateral pressure, no creaking or flexing of the shell can be observed, but the front side button can easily be actuated by pressing below it, even when using small to medium force. Lastly, accidental clicks when slamming down the mouse do not occur.

Buttons

Main buttons on the Lift 2 Symm are good (left button) to subpar (right button). Both buttons have moderate pre and post-travel, and button response is rather firm and snappy, albeit only on the left button, whereas the right one feels dull and muted. Despite being visually separated from the shell, button movement is minimal even when provoked. A pair of TTC optical switches (100 M) are used.


Side buttons are decent. On the forward button, pre-travel is moderate, but post-travel massive to where the button can be pressed into the shell in almost its entirety. The back button has high pre and moderate post-travel. The actuation point remains mostly even across the entirety of these. Button size and placement are quite good, as actuation is possible rather easily by rolling one's thumb across. A set of switches from "W" (blue plunger) are used for these.

At the top of the mouse is a single button for cycling through the set CPI levels, which works fine. A seemingly unbranded tactile switch (black plunger) is used here.

Scroll Wheel

The scroll wheel is decent. Noise levels are very high and of a rather unpleasant type, and tactility is average at best. The encoder comes from TTC (gray) and has a height of 11 mm. The middle (scroll wheel) click requires medium force for actuation. A switch from a manufacturer I'm unfamiliar with (white plunger) is used for this one.

Surface

The Lift 2 Symm has a matte surface at the top and a dot pattern on the sides. Grip is fine, but the dot pattern does attract dirt more than average. The matte surface at least is easy to clean, and there are no signs of wear left after doing so. All in all, good materials.

Button Sound Test

Disassembly

Disassembling the Lift 2 Symm is easy. The screws are found beneath the rear skate. After removing those, top and bottom shell can be separated with ease.

The internal design is simple yet efficient. The side buttons sit on a plastic assembly clipped to the main PCB. Everything else sits on the compact and moderately thin main PCB, which has been affixed to the bottom with three screws, though none are found at the rear part of the PCB. Instead, we can see a large layer of glue there, whose purpose is unclear. The MCU is an NXP LPC5528, whose datasheet can be found here. Production date for the main PCB is the 38th week of 2023.


As for the soldering and general quality of the PCB, I'm unable to find any noteworthy flaws.