Instruct: Classify a given review as either positive or negative.
Query: So far the best mouse I have ever used..

This mouse has all of the features I needed. It can be programmed to do what you want with each of the buttons. I have found this to be very functional and have also found the laser to be very responsive and accurate. I have never enjoyed using a mouse as much as I have this one. I look forward to many years with this mouse.