Sony SRS-BTS50 - Manual (Page 75)

When you finish using the system
When you finish using the system, perform either of the following operations.
Turn off the BLUETOOTH function on the BLUETOOTH device connected to the
system.
Turn off the BLUETOOTH device connected to the system.
Turn off the system.
Touch the smartphone to the system again (if your smartphone has the NFC
function)
Tip
When you finish playing music, the BLUETOOTH connection may terminate
automatically, depending on the BLUETOOTH device.
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