Great for either hand The contoured shape feels great in either hand and gives you maximum comfort for all-day use. Track on almost any surface NX-7000 uses 1200dpi BlueEye technology providing amazing tracking accuracy and is surface-friendly so you can use it on almost any surface, such as dusted or marble glass, a sofa or even on the carpet. Pico receiver storage When you are on the go, you can store the receiver in the bottom of the mouse. Unify your Genius mice You can use NX-7000 receiver to work with other Genius wireless mice for more mobility. No more worries if you lose a receiver from one of Genius wireless mice in the future.