sony wh-1000xm4 volume to low

[soksyA6000]

HI bought these headphones to go with a Fiio DM13 portable CD player and the sound when I have the cable in is very good for the volume, but when I try Bluetooth I have to put the volume on the CD player up to 99 to get any volume, and It's still too low what can I try to have tried a cheap pair of Motorola headphones and these are OK with good volume coming out of them The headphones are brand new.

[TheGOAT]

Hi @soksyA6000,

I believe it might be a compatibility issue as your other device must support A2DP Bluetooth profile. However, you can try these steps:

• Make sure your headphones have the latest firmware installed: https://www.sony.co.uk/electronics/support/wireless-headphones-bluetooth-headphones/wh-1000xm4/softw...
• In the Sony | Sound Headphones Connect app; you can adjust the EQ settings to enhance the sound quality and volume.
• Try resetting your headphones to factory settings. This can resolve any software glitches that might be affecting the volume: https://helpguide.sony.net/mdr/wh1000xm4/v1/en/contents/TP0002752746.html