Aftershokz most advanced wireless headphones yet, engineered for premium sound and a long-lasting battery to keep you aware and motivated to power through any workout. Its open ear listening design, with nothing inside or over your ears, patented bone conduction technology allows for total awareness and comfort while you listen. IP67 Water Resistant rating makes these fully sweat and Waterproof, against any intensity workouts or extreme weather. Re-engineered technology delivers the widest dynamic stereo sound that bone conduction can offer, with deeper bass, less vibration and louder volume. With an 8-hour battery life, enjoy music, calls, audiobooks and podcases all day long.