I use an Albrecht AE600, it works well. Using earplugs, I can hear my pillion or GPS up to 140kph.
I'm sure the Oxford product also works, but I have a general dislike for anything "Oxford" with the exception of their Hotgrips and Stormex covers.
I'm sure the Oxford product also works, but I have a general dislike for anything "Oxford" with the exception of their Hotgrips and Stormex covers.