Promate Slider Optical Wireless Mouse an ergonomic mouse designed with a streamlined arc design to help reduce the stress caused by prolonged use of the mouse. A transmission of 2.4GHz unlocks the ultimate connection that has no wireless interruptions or interferences from other wireless devices. The Promate Slider provides you with a steady and strong connection to accompany you during the long, tedious workdays. This optical tracking wireless mouse comes with 6 programmable buttons that can perform complex functions with a simple click. The forward and backward function keys make it easier to navigate through webpages and the DPI button allows you to increase or decrease on-screen cursor movement. The streamlined thumb rest and quick button controls let you navigate and work faster. This ergonomic design provides a fatigue-free performance so you can enhance your productivity. The sturdy rubber scroll wheel ensures your hand will not slip when scrolling. Cruise through long documents and presentations with ease and no pauses. This mouse also ensures precise tracking, smooth cursor control and easy text selection. The Promate Slider wireless mouse is made of durable and dependable quality materials. If you are looking for an everyday computer mouse you can depend on for a longer time, then this is the one. Sensor Resolution: 800/1200/1600 DPI, Battery: 1 x AA battery, Frequency: 2405-2475MHz and Rating: 1.5V, 25mA. Comes in black color.