Just Got this from Arcam
'Good afternoon
Thank you for your email. We do not make any bluetooth transmitters. If you use wireless headphones, then you will be using the DAC and amplifier built into the headphones, rather than anything that we have manufactured. If you want to listen to the CDS50 using the headphones, I would suggest a reputable Optical or SPDIF to bluetooth transmitter, although as we do not manufacture such products I cannot recommend any specific one.'
Anyone got any recommendations?