Build Quality

Overall build quality is solid. When shaking the mouse, a slight rattle comes from an indeterminable source. When applying lateral pressure, no creaking or flexing of the shell can be observed. Activating the side buttons by squeezing the sides is impossible. Lastly, accidental clicks when slamming down the mouse do not occur regardless of the set debounce time.

Buttons

Main buttons on the E1 Wireless are very good. Both pre and post-travel are moderate, but button response is firm and snappy nonetheless. Despite being visually separated from the shell, button movement is nonexistent even when forced. Button stiffness is medium. A pair of Huano switches (blue plunger) are used for these. The switch for the left main button has been raised with a spacer.


Side buttons are excellent (forward button) to very good (back button). Both pre and post-travel are virtually nonexistent, resulting in a sharp and pleasing button response, but the pressure point isn't entirely even on the back button, which also changes pitch when pressed towards the rear. Button size and placement are good, as actuation is possible rather easily by rolling one's thumb across. A set of low-profile Huano switches (white plunger) is used here.

At the bottom of the mouse is a button for cycling through CPI, polling rate, and debounce time, which works fine. A seemingly unbranded tactile switch is used for this one as well. Lastly, a simple on/off-button is present, which needs to be held instead of pressed, and too works just fine.

Scroll Wheel

The scroll wheel is good. Noise levels are elevated, but tactility is good, with clearly separated steps allowing for controlled scrolling without being overly stiff. The encoder comes from ALPS (black) and has a height of 9 mm. The middle (scroll wheel) click requires medium force for actuation. Another Huano switch (pink plunger) is used for this one.

Surface

The E1 Wireless has a matte surface all over. Grip is fine, and it doesn't attract fingerprints or dirt too much. It is easy to clean, and there are no signs of wear left after doing so. All in all, excellent materials.

Button Sound Test

Disassembly

Disassembling the E1 Wireless is easy. The Torx T6 screws are found beneath the rear skates. After removing those, four additional clips at the sides and front need to be dislodged, which is easily done. When separating top and bottom shell, make sure not the rip the cable connecting the two.

The internal design of the E1 Wireless differs from both older VAXEE releases and the XE-S Wireless. Unlike on the latter, the main button switches and scroll wheel encoder once again sit on their own PCB, screwed to a plastic assembly also holding the side-button PCB, with both PCBs connecting to the main PCB through an FFC. The battery is placed on a sticky pad towards the rear. Three screws are used to affix the thin and mostly compact main PCB to the bottom shell. The MCU is a PixArt PAR2862QC. Production date for the main PCB is August 28 of 2024.


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