Regarding its properties and qualities for a jog, bike training ... I read the comments of other members with interest, they are explicit and clear. (Euhh and I would have struggled to give you these details not jogging for mouah -! Laughter -)
My flat is bluetooth, I would have liked an option with a wire to wire. I'm not a fan waves ... So ...
IN ANY CASE A HELMET THAT SEEMS TO BEAUTIFUL QUALITY
GOOD LISTENING