I have noticed an odd behaviour with my B135 and mute.
Sometimes you put on mute and it just remains on until you take it off, but then other times after 30 seconds or a couple of minutes it just clicks off all by itself. It seems quite random and as I said sometimes it happens and sometimes it doesn't. The first time I left the room and came back and mute was off, I figured that I just forgot but then it started happening in front of me. Nothing could have touched the mute button on the unit or the remote.
I use the BR2 to mute and unmute it. Is this normal?
