2.4GHz Wireless - A more secure and precise experience than the traditional FM radio system with an increased working distance of up to 15m Tiny USB Nano style receiver plugs into your PC and can stay there. DPI button to select your preferred cursor speed; 2000/1500/1000dpi Tru-Wave technology for precise, smart cursor control over many surface types. Co-Link technology - after pairing there's no need to re-establish pairing after a signal loss or shutdown.