What is a Bluetooth® Transmitter?
In the mid-900s, the Danish king Harald Bluetooth united Denmark and part of Norway into one kingdom. In the late 20th century, Swedish engineers at Ericsson developed Bluetooth® transmission, a wireless technology that can unite different electronic devices regardless of their type, manufacturer, or operating system. Using low-power radio waves, a Bluetooth® transmitter can transmit signals from a computer to a stereo system, from a cell phone to a printer, or from an Apple to a PC. Remote controls use infrared signals to send information from the remote control to a device like the TV or DVD player. For a remote control to work, however, it must be pointed directly at the TV. With Bluetooth® wireless transmitters, devices within 30 feet (10 m) of each other can communicate, even through walls and around corners. This is because a Bluetooth® transmitter uses 2.45 GHz radio waves to transmit signals, the same frequency used for baby monitors and newer cordless phones. When one Bluetoot
