Welspo Wireless USB Handheld Finger Trackball Mouse with Laser Pointer - Ergonomic Black Computer Mouse for Presentations, CAD Design & Office Work

UPDATE (9/2022): I reached out to the manufacturer and they sent me a replacement even though it was almost a year since I'd purchased it. I'm updating my review based on my happiness with the mouse (which was always very high) as well as the fact that I'm extremely impressed that the manufacturer was willing to take responsibility and stand behind their product.------------------------------------It's very convenient to have a mouse you don't need to rest on any surface, and I loved this mouse while it functioned correctly. Unfortunately, after less than a year of very light use (at most once every few weeks) it stopped working. Specifically, when I'd plug the small dongle into the PC I'd get the error "A request for the USB device descriptor failed. Windows has stopped this device because it has reported problems. (Code 43)", and no amount of finagling would resolve the problem. I'd have thought the dongle would be bulletproof since it has no moving parts, but apparently just inserting and removing it a few times over the past year put it out of commission.At this point I'm left with an expensive laser pointer, and it's frustrating to know that the mouse itself is probably fine and the only thing preventing me from using it is a bad dongle. I'm now using an old wireless Microsoft laser mouse that's still going strong after 15 years, dongle and all.Maybe I just got a bad unit and you'll be luckier than I was, but as it stands I can't recommend this mouse.