We loved this accessory so much we bought two. Way less expensive than the GB Packers one! I asked this question on June 30 before purchasing and this is the answer I received. Even when wet with mud they didnt slip on my laminate floors. The audio, while not being customizable, is pretty good out of the box. I mean it really does help boost the fm radio but if you are in a parking garage or somewhere underground it will get fuzzy I know this is for marine purposes so I cant really complain. This one seems like it will hold on tight. Quede gratamente sorprendido, el sonido es muy alto si tenemos en cuenta el tamaño del dispositivo, se escucha fuerte y claro, son distorsión incluso a volúmenes altos. sound quality is impressive. You can also take phone calls - there is a mic in each earbud.