Shokz Headphone Blue Standard. With flexible ergonomically shaped ear hooks and a nickel-titanium alloy headband it stays comfortably in place whatever water sport you choose. Signature open-ear design keeps you aware of your surroundings above water giving you confidence during watersports. Underwater it pairs perfectly with professional swimming earplugs to keep water and debris out while maintaining clear stable audio especially in the open water. Specifications for Shokz Headphone: Manufacturer: Shokz Battery Type: Lithium Ion Headphone Style: In Ear Features of Shokz Headphone 45-Day Risk-Free Trial & Free Shipping Shokz DualPitch Technology for Premium Sound Quality Reduced Vibrations. Enjoy Music without Any Tactile Feedback Up to 12-Hour Battery Life & Quick Charge Package Contents: Shokz Headphone Case Charging Cord Shokz S820-ST-BL-US: Headphone Blue Standard