AfterShokz latest edition of bone conduction headphones will exceed your expectations with their premium audio, crystal clear calls, lightweight and comfortable fit and open ear design. Bone conduction technology delivers music through your cheekbones, ensuring ears remain completely open to hear ambient sounds. Titanium headband is lightweight and flexible for durability and portability. OpenFit™ design ensures maximum situational awareness and comfort during long-term wear. Complies with Prop 65.