Review on MOJO Silent Bluetooth Vertical Mouse: Wireless Ergonomic Optical Mouse with Adjustable Sensitivity and Quiet Buttons - Perfect Grip Dual Mode (Bluetooth + 2.4 GHz Wireless) by Ryan Bowers

I'm a student studying business informatics, ie I work an average of 6 hours a day on a laptop; We use it every day for almost a year. This is great for the following reasons: 1) It's a "quiet" mouse, meaning people around you won't hear the constant clicking noise that most people find annoying, especially in a quiet area in a library. 2) It's a Bluetooth mouse, which means one of your USB ports isn't occupied by a dongle, freeing it up for something else. 3) Battery life varies greatly. I use 2 rechargeable batteries and have to change them every 1-2 months which is very good. Also, when you are not using the mouse, turn it off, it always helps to save battery. 4) Last but not least, this is a vertical mouse, which means less strain on your arm muscles. Something you will learn as you go from regular to upright mice. If you're worried about them disappearing, I have to admit that the logic applies to all electronic devices. What I recommend is a warranty for about $3-4 that protects this from breakage for 2-3 years.