The quality of the atria may disappoint many. The sound is not sufisamment net for me. And at certain speeds, we do not really hear the coyote. Could this be the noise from the exhaust? probably ... In addition there is a little sizzle when the first sound is emitted. By cons at the place in the helmet with Schubert C3 it fits perfectly in the ear slots and do not hurt me malgres glasses and more. For sound I will put 2/5 and the equipment in it even 5/5 (dial to increase the volume, size of the atria, ability to detach a part that will remain in the helmet ...). Brief overall ... 4/5
