I would like to say in simple language ,
I have given 5 star rating for this Mouse this is a fact that the DPI button works really well and surprisingly I am using the button more than often now. When I purchase the product I thought it would be poor quality but I received it use it for some day that I knew this one's a keeper Nice product for such a low price.
The good thing is this it automatically switches off the power when it is idle for long time saves the power and it really works good I am using it to play games and surfing and it is working accordingly as it is used to be.
Thanks and Regards
Manoj Kumar Soni
Guna Madhya Pradesh