What's in the box: Pair of Hydro Seal Aqua Plugs
JBL Hydro-Seals utilize an advanced multi-baffle polymer design providing exceptional protection against water entering the ear canal. In addition to greatly reducing the chance of infection by inhibiting bacteria from growing in stagnant inner-ear water, Hydro-Seals also help prevent the temporary loss of equilibrium. Simple and effective to use, Hydro- Seals reduce the chance of surfer's ear by sealing out cold air and water, which causes exostosis.
Exclusive Hocks Noise Breaker allows normal sound waves to pass through while preventing pressure build-up from water intrusion, making them ideal for divers that have trouble clearing their ears at descending depths. Hydro Seal Aqua Plugs are doctor recommended and are preformed for left and right ear to give a custom fit.
Picking the right size:
Hydro Seals come available in three sizes: Small, Medium, and Large. Fitting is determined by the size of the user's conchal bowl (outer ear canal). Note that medium fits most people.