Full Details from Amazon.com : http://www.amazon.com/gp/product/B00MRVK4BA?tag=onigi-20

Gigabyte MMO Gaming Mouse (GM-THUNDER M7)

16 fully-programmable Gaming Buttons All keys on THUNDER M7 are programmable via AORUS macro engine to ensure the maximal flexibility for customizing personal skillsets
Top-of-the-line Gaming Laser Sensor Advanced laser sensor supporting up to 8200dpi resolution and 150ips lightning fast tracking speed ensures efficient and smooth movement on your multi-screens or the most high resolution monitors
On-the-fly DPI Switching 800160032005600DPI adjustable switch with synchronized indicator for quick on the-fly DPI adjustment
20 million clicks lifetime Omron switch Ultra-durable 20 million clicks Omron switches not only extend the durability and also perfect the clicking response
Built-in AORUS Macro Engine Profile switch at your fingertips enables you to switch between 5 different gaming profiles Up to 70 macros memorization for the gamer on the go