I hear incoming callers well, and incoming callers say they can hear me well with little to no distortion. Solid fit. This type of performance is more common with products costing less than $40 a pair. They are perfect and the sound is fantastic. Wonderful socks! Perfect okay product They have a *little* arch support, but I did have to add orthotics (Dr. Would be nice if sony added this feature, but for now this works great. You simply need to replace the choke for your back wheel (especially if its plastic) with the one supplied and mount your bike. Pathetic