Cambridge is known for having a fair number of eccentrics (especially amongst those who haven’t visited Oxford).
But this is a good thing, because it means when winter comes along I could perhaps get away with using this in a public place:
It’s a bluetooth headset, built into the fingers of a glove.
As you talk into it, I imagine, people will smile comfortingly and realise that it was just about here that they needed to cross the road. This will help to ensure the privacy of your phone calls.
I wouldn’t try it when driving, though. You couldn’t really describe it as a ‘hands-free kit’…