Review on Adjustable DPI Wireless Ergonomic Handheld Trackball Mouse with Laser Pointer - Left and Right Handed for Laptop, Desktop, PC, Computer by Joshua Douglas

I just had shoulder surgery and was looking for a trackball mouse that doesn't require my arm to move much. Due to my work I spend 7-8 hours on the computer and this mouse has been great. It took about a day to get used to, but with a few tweaks to Microsoft's mouse, it was great. I had a period where side-to-side mouse movement wasn't very responsive, so I removed the trackball and blew on the seat to clear any dirt or dust, and that seemed to fix the issue. I can't comment on the battery life or durability as I've only had it for a week. It was very easy to connect. Just plug in and get started.