Sony SRS-NS7 Help Manual page 44

You hear voice guidance (BLUETOOTH disconnected) from the neckband speaker, indicating that the BLUETOOTH
connection with the TV is terminated. Immediately afterward, you hear voice guidance (BLUETOOTH connected)
from the neckband speaker, indicating that the neckband speaker is connected with the BLUETOOTH device.
Hint
Depending on your BLUETOOTH device, turning on the device may automatically establish a connection with the neckband
speaker.
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