Sony HT-ST5 Operating Instructions Manual page 44

Basic Operations / Opérations de base
When using one-touch connection (NFC) / Lors de l'utilisation de la connexion une touche (NFC)
Lamp (blue) / Témoin (bleu)
1 Download, install, and start the "NFC Easy Connect" app on your smartphone.
2 Touch the N mark of the Bar Speaker with the smartphone.
3 Make sure that the lamp
Smartphones, tablets, and music players with the NFC function built-in
(OS: Android™ 2.3.3 or later, excluding Android 3.x)
14
lights up. (Connection has been established.)