Trident New Wave Waterproof Smartphone Case with Free Floating Wrist Lanyard &Free Neck Lanyard for Most iPhones and BlackBerry Smartphones - Pink (Fits Phones Measuring Up to 4.5 x 2.6 x .6 Inches) AB Biller DFC - Dynamic Flow Control

DFC - Dynamic Flow Control Minimizes intermediate pressure drop during inhalation thus maximizing gas delivery

Nitrox ready for mixtures up to 40%

These contribute greatly to overall comfort and performance

Reduces hair tangling and makes it easier to slide your mask on and off

Comes with carabeener to allow the case to be clipped onto another backpack

Trident New Wave Waterproof Smartphone Case with Free Floating Wrist Lanyard &Free Neck Lanyard for Most iPhones and BlackBerry Smartphones - Pink (Fits Phones Measuring Up to 4.5 x 2.6 x .6 Inches) AB Biller DFC - Dynamic Flow ControlFeatures: Waterproof up to 6 meters 20 feet, IPX8 certified, Snow proof & Sand proof Fits most 4G Smart Phone Models Fits phones measuring up to 4. 5 x 2. 6 x . 6 inches Complete touch screen and call functionality Unique lock design for secure closure Details: Protection from water, rain, snow, dust, sand & dirt. This Waterproof Smartphone Case allows for full functionality of your phone. With a simple twist and lock access, this easy to use product