amsterdam - It's always a little wary when you go out the door with earplugs in, especially if you're running or cycling. But what if you can listen one music, one can hear the ambient sounds? With Trekz Titanium Aftershockz is possible.
The 'headset' since it is not on the ears, but the sound pumping through \u0026 nbsp 'bone conduction; so your skull in. And it works a little bit... ?