Wireless speakers volume and blue tooth voice disappeared after charging wireless speakers

[Jamessssss]

I have had my WI Sp500 wireless headphones for approximately 7 months. Following the last charge the Bluetooth voice that tells you you are connected and power off and power on has stopped. I now cannot tell if they are on or need charging. The volume has reduced significantly with all apps like Spotify and Netflix. I have tried the factory reset as per Sony instructions but to no avail. Can anyone share any information about this problem.

Many thanks

[Marino.Manolo]

But have you reset your headphones or factory settings?

Resetting the headset

Initializing the headset to restore factory settings

Manolo

[Jamessssss]

Yes I have done that

[saspitak]

Hi, I'm just wondering if you have solved this problem as I have exactly the same problem as you. However the low volume only occurs in iPhone. I tried everything people listed on the web but still no good. If you have solved it, I would appreciate to hear how. Many thanks.