Review on Rii RM200 Wireless Mouse - Rechargeable 2.4G Optical Mouse with 5 Buttons, USB Nano Receiver, 3 Adjustable DPI Levels, Colorful LED Lights - Ideal for Notebook, PC, Computer (Black) by Jamie Masloski

It took me a few hours to get used to the design, but I think it was because I was using a very old non-ergonomic mouse. I tried it to see if it helped my sore finger and it made a difference in how I feel. I bought a second one for work. The lighting is a plus, it looks sharp when used in low light areas, you also have the option to use it without the light. I probably charge it about once a week, but since you plug it into a laptop you can keep working on it while it's charging. I would recommend it to anyone who uses a mouse more than a few hours a day.