Okay, it's just a cheap mouse. But I needed a mouse, after being out of the mouse purchase game for a few years. These things have… evolved. Slightly.
I avoided Bluetooth on mice in the past; power hungry, a pain to set up. USB 2.0 wireless dongle receivers were simpler and easier, as long as you didn't think about the added radio noise generated. But these days, you can have both in a low-power chipset. If you don't need the dongle, it just stays in the case next to the AA battery compartment, or gets thrown away for storage space - the compartment takes a single AA, Amazon description is wrong.
This mouse has the features I look for: scroll wheel! which clicks as a middle button! simple vestigial third button behind the scrollwheel, which might also be a programmable button (not sure, and the leaflet is no help, though it talks of setting up for iPad - EDIT it's for CPI count per inch tracking granularity, according to the labelled photo below the image of Anne Hathaway, the actress. Scroll down.)! And a button underneath to select between bluetooth and wireless USB, where the tiniest of tiny LEDs - one red, one blue - light up just to confirm which is operational. After years of having to use huge wireless dongles which weren't bluetooth, but had glaring blue LEDs to hint at it and look cool (hey, HP? you're not cool), I appreciate the design and the restraint. And there's a power on/off toggle, which much more expensive mice lack.
No sign of a USB-C dongle, but anything with USB-C is likely to have bluetooth, right? right? And the ergonomics are par for the course: better than the iMac puck mouse, worse than the expensive ergonomics category.
As there's no wired tail, is "mouse" still what we should be calling these things?
Never mind. it's just a cheap mouse.
Upvoting just for your effort in trying so hard to sell this ordinary mouse… There are so many options available in this price range.