I don't think it's available yet, and I can't find the answer to mu question in any of the on-line blurb, so I wondered if anyone on the forum could answer it for me. The blurb makes great mention of the bluetooth facility on the unit for transmitting sound to the helmet, but I can't find any reference to a facility for plugging in my in helmet speakers which have an ordinary 3.5mm jack plug on them. Does anyone know whether this facility will be available on the units when they become available?