Aluratek ABC02F Bluetooth Receiver/Transmitter

Dual Modes - Receiving and Transmitting Simply flip the switch on the unit to enable either Bluetooth Receiving or Bluetooth Transmitting. Rx (Receiving): Use the receiving function to stream music wirelessly from your computer, smartphone, or tablet to any audio device with an AUX IN (3.5 mm) port such as stereos, car stereos and speaker docks.