[. . . ] TO FINE TUNE, FOLLOW THOSE 3 STEPS 1 - Connect the WTX-1000 on an auxiliary analog input t or digital one e r of your HiFi amplifier, AV receiver or DAC then select Digital or Analog input on the switch w. [. . . ] 2 - Go to the Bluetooth Manager of your iPhone, iPod touch, iPad, tablet, smartphone, PC or MAC computer, then go on the bluetooth settings. Confirm that you choose it, after few seconds, your audio device is pairing with the WTX-1000. If pairing is ok, then, the blue led a of the Air amplifier will be fixed. You don’t need any Pin code confirmation even if in certain case a code will appear on the device and desappear automatically after few seconds. Just play music on your device as you normally would and the sound will come out of your HiFi system. If you move out of range or turn off the Bluetooth feature on your audio device, the wireless Music Receiver will disconnect from your device. [. . . ] To reconnect, simply access the Bluetooth Manager on your device and select the WTX-1000 connection. [. . . ]