A mouse that sends signals to the computer without a cord. Bluetooth mice are commonly used with tablets, because most tablets have Bluetooth built in. They can also be used with a computer that has Bluetooth from the factory or via an adapter. Wireless mice that use other radio frequencies (RF) come with their own transceiver that plugs into the USB port of the computer. See optical mouse
, wireless dongle
and ISM band
Microsoft Mouse Transceiver
This Microsoft mouse transceiver barely protrudes from the USB port.