The audio quality is ok for the purchase price. The quality is sometimes poor but I attribute it to the network or at the wrong time because it is a rare occurrence.
Another interesting detail is its autonomy. Using it for short shots son several times a week (8A 10 times) I do not charge more than once a month.
Small flat, fixing after some time finally make his mark at the sun visor. Imprint manifested by a sharp crash and who I think do not leave even if I remove the binding.
That's why I did not put a 5th star.