Freewheelin audio system for helmets
In the latest Adventure cycling magazine, there is an article reviewing this product for cycling use. The summary, while a little expensive (~ $150) it provides a great way to listen to music while riding and still being able to hear your surroundings. So I purchased a set.
While I don't disagree with the review, my email to their company (address obtained from their website) asking if addition 'Dual Lock' sets are available for mounting the system on different helmets got the following
That was 24 hours ago, no response yet. Doesn't bode well for the viability of the company.
Technical details of temporary failure:
Google tried to deliver your message, but it was rejected by the server for the recipient domain soundryder.com by mail.soundryder.com. [18.104.22.168].
The error that the other server returned was:
451 Temporary local problem - please try later