Wireless mice and keyboards offer you the ability to move around without being tethered by wires. Most work by radio frequency. You plug the transmitter into the USB port on your computer, add batteries in the keyboard and the mouse and the new devices will be active.

Remember that the batteries will eventually wear out. If you have been using the wireless keyboard and mouse for a few months, and they start to act erratic, the first thing to do is to change the batteries.

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