Is there a volume control on the wire?...
Is there a volume control on the wire? could I wear this under a full face helmet?
No volume control on these. It is possible to wear under a full face helmet but they are a bit bulky. I would suggest you look at the Skullcandy Fix Buds. They hook nicely into the ear canal so that they don't get pulled out accidentally. They also have a mic3 control with volume adjustment.