Reliable wireless combo with a tiny plug-and-forget nano receiver and compact mouse. Advanced 2.4 GHz wireless. Work or play in more places | The wireless connection virtually eliminates delays, dropouts and interference and gives you a range of up to 10-meters range | Compact mouse. Take the mouse with you. This comfortable mouse fits easily into computer bags and pocket to travel with your computer | Extended battery life. A 24-month keyboard and 12-month mouse battery life-plus on/off switch