How to raise Bluetooth volume when streaming to Moode

[Daksha]

Hi Tim, first of all, thanks!
moOde is acting as a receiver and the sender is this one:
https://avantree.com/privaiii-bluetooth-...ter-for-tv
When pairing, it's recognised as "CSR Audio Dongle", even if googling for CSR Audio Dongle reveals it's a small bt adapter.