Originally Posted by
BohicaX
I use these and while I don't have them on my helmet I do have them mounted on a bar at the back of my bent. They offer great sound when you want some music and doesn't imped surrounding noises. Each speaker and main amp is about the size of a match box plus extremely light. I have toured with mine allot and even been through belting thunderstorms. They claim there water resistance but I think there being a little on the cautious side. They use a 3.5mm jack to run off your phone or blue tooth so best of both worlds. With blue tooth I don't have the volume up very load but if you plug the 3.5mm jack into the unit there is a big jump in sound so your looking to turn them down when using the jack. Quality product but not a cheap option I got mine of ebay for $124.00 USD
http://soundryderaudio.com/
+1
I tried using a single earbud, but found it didn't stay in consistently and never wanted to use both just in case it diminished my hearing of surrounding warning sounds. After reading an article about this product in Adventure Cycling I picked it up. You do need to keep the volume to a reasonable level if you want to hear surrounding sounds; however, it seems much more convenient and comfortable than wearing ear plug type headphones. Only draw back is it is another device that requires recharging (USB power source)