Its 2.4GHz digital cordless technology provides longer range compared to traditional wireless, and delivers interference-free operation. The 2.4GHz micro-receiver snaps into the mouse for easy transport and turns it off for power efficiency. Invisible Light optical tracking delivers smooth, precise control and the Tilt Wheel Plus Zoom makes side-to-side scrolling effortless. All of this is wrapped up in a durable design that's ideal for business-class mobility.