Sony DR-BT22iK Operating Instructions Manual page 28

Notes
 When fi rst power on the transmitter aft er initialized, the transmitter will
enter "Pairing in process" automatically.
 Th e pairing information is initialized if you press and hold the power button
for 15 seconds. Th e transmitter indicator lights up for 5 seconds before the
initialization starts. Release the button immediately when the transmitter
indicator lights up.
 "Pairing in process" is released aft er about 5 minutes. If pairing is not
established within about 5 minutes, repeat the above procedure from step .
iPod backlight may turn on in this 5 minutes.
 To enter "Pairing in process, " you need to turn off the power of the
transmitter fi rst.