OpenRun is our lightest headphones to date and are engineered with outstanding sound, a long-lasting battery, and Quick Charge to keep you aware and motivated while you power through any workout. Secure headphone that offers amazing sound at a lightweight Lightweight wraparound design lessens the burden and doesn't slip Up to eight hours of battery life ensures it'll last the workout & Quick Charge IP67 waterproof rating means it resists moisture-build and mists Bone conduction technology increases its auditorial quality 8th Generation Technology for Premium Sound Quality ** does not come with charger. ** Chargers run $8-10