Featuring a precision 1000 dpi optical engine, NS-6000 provides great cursor control for browsing documents or Internet pages. The contoured shape is suitable for either hand and the gently curved sides give your hand the support and comfort you need for all-day use. A convenient pico receiver snaps into the mouse for easy transport or storage. To save on battery purchases, NS-6000 is designed with only one AA battery and a power switch is added to extend the battery life. The NS-6000 is the perfect choice for a versatile, comfortable, and dependable mouse.