Sony SRS-NS7 Help Manual page 6

1.
(BLUETOOTH) button
2.
Indicator (lights in orange or blue)
The power or communication state of the transmitter is indicated by the orange or blue indicator.
3.
DIGITAL IN (optical digital audio input) port
4.
DC IN port (USB Type-C
Related Topic
About the indicator on the neckband speaker
About the indicator on the transmitter
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