Unfortunately, I am not able to properly rate the shampoo because I received two conditioners and I didn?t actually pay attention to this until I got ready to wash my hair tonight. Per the manual, volume +/-, press and hold for 2 second and keep pressing to turn down/up continuously. Mounting is not difficult. It does charge my controllers. And the price was better! ) We both have longer toes and still they do not fit right. It has pretty good volume, although if youre in a pack of quads and SxSs, it can be tough to hear. I will be trying out the more sturdy frame-mounted version. Loud. But you can see how my heel hangs over on the new black Annadel Eirwyn.