Our most advanced wireless headphones yet, engineered for premium sound and a long-lasting battery to keep you aware & motivated to power through any workout with an 8 hour battery life. Our open-ear design powered by bone conduction technology allows for total awareness of surroundings and bud-free, comfortable listening. An IP67 rating makes these completely sweat and waterproof to welcome intense workouts and extreme weather. A moisture detection alert ensures safe charging. Not intended for swimming.