Reliable 2.4GHz wireless connection Reliable 2.4GHz wireless connection with up to 10m working range. Up to 6-month battery life With Rapoo's latest energy saving technology and power switch, you can use your mouse without power interruption for up to 6 months. 1000 DPI high-definition tracking engine Youll enjoy responsive and smooth cursor control with the 1000 DPI high-definition optical tracking engine.