Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: Will this mouse work with Windows 8.1  ?
Document: the mouse works great.Battery saving feature could a bit annoying sometimes (standby)... but you save battery.USB adapter is a little bit loose, something that you need to keep on eye on sometimes.Works perfectly on Windows 8, 8.1, 7, vista (I have tested it on different computers).The mouse is very handy and very ergonomic. Design is nice. In terms of size... not too small, not too big.
I needed an inexpensive but functioning mouse for my wife's computer. This one is great. It even stores the USB receiver inside the battery compartment so it doesn't get lost when not in use. The battery life is decent, but nowhere near the 18 months claimed in the ad for the product (we had to replace the batteries after about 7 weeks of heavy use). Other than that, it's really accurate and works well with windows 8. It's light-weight though full-sized.
I have arthritis, and the ergonomic design works well with my handicap. Battery life is great and only takes 1 battery unlike some units that require 2 (half the cost to operate). I love the DPI button, it allows me to switch cursor speeds on the fly without going into windows os and changing it.
I have been SO impressed with this mouse. This has been my first wireless mouse, and I use it primarily for work. So far, it's been excellent! No problem with battery life at ALL (runs on 1 easy to find and recharge AA battery), and have had only minor problems connecting it to the receiver (mostly when I'm switching use between computers). Easily the best budget mouse I've had in years, AND it's wireless.
Great little mouse. The auto-off feature saves battery life. I use this in my laptop, which is not my primary use work machine, and so the long battery life is perfect for that. It just lives in my bag and only gets used a few times per week. The push-button sensitivity control is another nice feature, so that I don't have to dig into Windows settings. The &#34;nano&#34; is subjective. It isn't much smaller than a standard mouse.
I Love this mouse, it's real easy to use, it fits in my hand  perfectly, the love color! (i picked the orange and grey one). Great buy for 8 bucks!
You get exactly what you would expect from a cordless mouse. Plug in the receiver, wait a few moments for Windows to install drivers and Bam! Everything is working perfectly fine.
Great product. it worked strait out of the package even before I signed into my windows account. Plug and play at its best! The mouse has a quick response and good feel to the hand. The back buttons are perfect for anyone who hates to have to drag the cursor across the screen to hit the back button.
After a few moments of adjusting I had no more problems and I haven't looked at the manual to find out out to adjust this lower. EDIT: This is rather easy to to fix simply using the DPI button on the mouse...Note: I use this on Windows 7 and not a Mac/Apple device as some other reviewers seem to be doing which may count for my buttons working out of box.
Great Mouse, easy to set up and customize. I'm using mine on a windows 7 enterprise edition computer. Using the provided software i customized the buttons by the thumb to serve my needs. I have those two buttons set to copy/paste. Saves so much time. The mouse itself is comfortable to hold and conserves battery life very well.
Answer: Yes, works fine for me.