Introducing the aftershokz bluez 2s out of ear headphones the bluez 2 open ear headphones are the only bluetooth stereo headphones that allow you to tune in to music or calls without disconnecting from the world all with complete wireless functions the bluez 2s headphones use bone conduction technology which guides mini vibrations through your cheekbones to your inner ears delivering stereo sound without plugging or covering them working alongside this new way of enjoying your music the h