I've noticed the same issue, mine can have 30% charge when off and when I goto use it, its completely dead, has to be a firmware issue

have you downloaded the sony Headphones Connect app? this may help you

Daft question but have u put the volume up on the headphones

your welcomed

they come with cable but its a standard cable , I would like to upgrade the cable and they are Bluetooth but listening via cable is better when home

I'm using these also , are you using the supplied cable or a better upgrade?

any chance of brining the Sony Headphones Connect app to the SR15

ive read a few posts on here , regarding the sound quality and I will see about returning this unit , should not be getting that hot when playing standard flac files

ive also noticed a drop in sound quality since upgraded firmware , to the point I thought maybe 1 of the dac's failed if that's possible at all , also noticed that still after 2 hrs playtime , the unit get to hot to hold .

what a wally I 'am lol problem solved , cheers , I thought the volume was control via player not headphones too :)

Recently purchased the SR15 , sound quality is amazing via wired but when connect over bluetooth Sony MDR-1000X , the volume is really low , to the point i have to max out to get it upto a decent enough volume , anyone else , have this problem?