Sony HT-ST9 Operating Instructions Manual page 12

Connecting to a BLUETOOTH Device by One-touch
Function (NFC)
By holding an NFC-compatible BLUETOOTH device near to the
N mark on the Bar Speaker, the system and BLUETOOTH device will
pair and make a BLUETOOTH connection automatically.
Compatible devices
Smartphones, tablets, and music players with the NFC function built-in
(OS: Android™ 2.3.3 or later, excluding Android 3.x)
Notes

Depending on your device, you may need to perform the following
items on your remote device in advance.
– Turn on the NFC function.
– Download the "NFC Easy Connect" application from Google Play™ and
start the application. (The application may not be available in some
countries/regions.) For details, refer to the operating instructions of
your device.

This feature does not work with BLUETOOTH-compatible receivers (such
as headphones). To listen to sound using a BLUETOOTH-compatible
receiver, see "Listening to Sound by Transmitting to a
BLUETOOTH-compatible Receiver" (page 13).
12
US
Indicator (blue)
1
Touch the N mark of the Bar Speaker with the BLUETOOTH
device.
2
Make sure that the indicator (blue) of the Bar Speaker lights
up. (This indicates that a connection has been established.)
3
Start playback of an audio source on the BLUETOOTH device.