Info from the manufacturer: A New Way to Listen! Born for Sports! Experience the ultimate wireless workout with these bone conduction headphones. Unlike traditional headphones, the open-ear design allows you to listen to your favorite tunes while staying alert of your surroundings. Whether you're a runner, skier, mountain biker, or climber, these open ear bone conduction headphones are the perfect addition to your outdoor exercise routine. Not only can you power through your workouts with your favorite beats, but you can also stay safe and aware. Bone Conduction Technology Experience sound like you've never heard before with our cutting-edge bone conduction technology! By transmitting sound vibrations directly to the inner ear via the bones in your skull, you can enjoy a truly natural listening experience without the need to block your ear canal. Our advanced transducer converts sound waves into vibrations, which are then sent directly to your inner ear, perfect for fitness enthusiasts