Sony SRS-HG10 Help Manual page 204

Help Guide
Wireless Speaker
h.ear go 2 (SRS-HG10)
The speaker does not appear in the device list of the PC's music playback application
Some software that is pre-installed on a PC cannot select the speaker as an audio output device.
Use software that can select the speaker as an audio output device, such as "Windows Media Player," etc.
Check the network connection.
Check that the speaker and the PC are connected to the same SSID of your router.
Check that the speaker is turned on.
If your PC uses a firewall, this may prevent the speaker from appearing on the list.
In this case, disable the firewall. For details, refer to the operating instructions or help guide of the firewall software.
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