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 a tilt wheel makes side-to-side scrolling effortless. All of this is wrapped up in a durable design that's ideal for business-class mobility.