Sony WALKMAN NWZ-A15 Help Manual page 386

Help Guide
Troubleshooting
Digital Media Player
NWZ-A15/A17
You cannot hear sound from the Bluetooth audio device.
Check the volume on the connected Bluetooth audio device.
It may not be possible to adjust the volume of certain Bluetooth audio devices. Turn up the volume of your Walkman.
Make sure your Walkman starts playback.
Turn on the connected Bluetooth audio device and make sure the Bluetooth function is activated.
Make sure the Bluetooth connection is not disconnected.
If your Walkman does not recognize playback operations on the Bluetooth audio device, the profile of the connected
Bluetooth audio device may not support AVRCP. Perform the operations on the Walkman.
Related Topic
Playing music
Pairing and connecting with a Bluetooth audio device
Connecting with a paired Bluetooth audio device
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