Sony WI-SP510 Help Manual page 97

Help Guide
Wireless Stereo Headset
WI-SP510
No sound
Check that both the headset and the connected device (i.e., smartphone) are turned on.
Check that the headset and the transmitting Bluetooth device are connected via Bluetooth A2DP.
Turn up the volume if it is too low.
Check that the connected device is playing back.
If you are connecting a computer to the headset, make sure the audio output setting of the computer is set for a
Bluetooth device.
Pair the headset and the Bluetooth device again.
Reset the headset.
Charge the headset. Check if the sound is output from the headset after charging.
Initialize the headset, and pair the headset and the device again.
Related Topic
How to make a wireless connection to Bluetooth devices
Listening to music from a device via Bluetooth connection
Resetting the headset
Initializing the headset to restore factory settings
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