Eliminate the need to reach for a mouse with the ergonomically constructed Contour Design Wireless RollerMouse Red. This mouse features a durable aluminum body and a redesigned, textured rollerbar. The rollerbar provides two functions including moving the cursor and performing a left click. This mouse also features six programmable buttons, a scroll wheel, and an on and off switch. Additionally, there's a dpi switch button, which allows you to change from 10 different speed settings from 800 to 2400 dpi.