This is a right handed mouse that has 6 different buttons that you can customize yourself after installing the enclosed software. There is your regular left and right buttons plus the scroll wheel clicks when you press it and there are 2 buttons by the thumb and 1 more little button just behind the scroll wheel. The color of the light can be set to suit you and you can also adjust the weight so it feels right in your hand. Note: No programming function under Mac. #rankboosterreview #Sponsored #Zelotes https://www.amazon.com/Zelotes-Programmable-Breathing-Ergonomic-Computer/dp/B076Q5Y5LH