Futuristic technology keeps getting better and the proof is in the AfterShokz Trekz Air Bone Conduction Headphones. Resting just in front of your ears, these headphones use bone conduction technology. They deliver ultra crisp audio without going inside your ears. With this design, your ear canals remain open to you can still hear environmental noise around you. This headset uses Bluetooth 4.2 technology to seamlessly connect to your device. Perfect for commuters, the Trekz Air keep you in the moment with your surroundings yet give you full audio inspiration. As an upgrade on the original, the Trekz Air are 17% lighter and, somehow, even slimmer. Perfect for your every day, the Trekz Air sport an impressive 20-day battery life on standby and six hours of playtime.