Thanks to LHSolutions for the $10 code!
These are also available from Amazon for $169 plus delivery (free with Prime).
The Trekz Titanium is going for $109 delivered at Wildfire, or $119 (plus shipping, free with Prime) at Amazon. They're just slightly larger and heavier than the Air.
These bone conduction headphones are great for listening to music or podcasts when you still need to hear what's happening around you, e.g. at an office desk, when cycling or jogging, when doing tasks around the house, or just walking around a busy area.
They vibrate through your skull leaving your ears open to hear what's around you. They sound great for podcasts, and OK for music if you keep in mind its limitations. They won't sound as good as earphones, but will give you better situational awareness than any earphone or headphone ambient mode.
if I put these on my ballz and play some heavy metal, will i get a raging boner?