It's plugs are excellent, I have tested on the road but also on Highway 140 with my Bandit N without protection and Shoei XR1100 on the nose, the result is impressive, comfort, silence, and yet the sound of our engine or the road environment remains largely audible. One downside is price, but lesAlpine MusicSafe are cheaper eet are exactly the same, apart from a live wire screw PIUR store these plugs that can be hung on key rings.
