Thanks for the reply. It's because I'm in the UK and I can't find a bluetooth cable that has a 2pin 0.78mm connector. I only seem to come across MMCX bluetooth cables. The R1 Zenith would fit with the Audeze cipher cable as the 2pins on the cable are same size as for the R1 Zenith. I can't even find a 2pin to MMCX adaptor in order to use a MMCX bluetooth cable. I'm not really interested in using the cipher settings, I just want a good quality 0.78mm 2pin bluetooth cable. I can't believe that's so hard to find here in the UK. The only one I've come across is the Audeze cipher. If you, or anyone knows where in UK I can get a good bluetooth cable for the R1 Zenith I would really be thankful.