Bluetooth 4.0 with A2DP:
For Bluetooth pairing, be sure to unplug the audio cable from the line-in port and then hold down the power button (FROM AN 'OFF' STATE) for 4 seconds to activate pairing mode. The Bluetooth LED will turn solid blue. Search for the SUBPAC in your transmitting device’s Bluetooth settings and pair with it as per the manufacturer’s recommendations. When successfully paired the LED will flash until audio is played, where it will turn solid again. Note that plugging in the line-in cable will automatically turn off Bluetooth and will disrupt streaming.