I bought this Helmet, because it has a subwoofer for that punch of bass! So they claim.So I ordered it, shipping was free, and it came pretty fast 3 days! I thought great I'm going bording tomorrow, Just in time. Well I took it out of the box, pluged it into my ipod, and only 1 ear played. All I could hear coming from the right ear was a faint crackel.My saving grace has been that I called this place up, and they were very helpful. They asked if I wanted another Helmet of the same type that worked? or would I like my money back? I opted to get my money back. Because on top of not working! the helmit made me look like I should have been an extra in star wars.