The special acoustic filters in SwimSafe earplugs ensure that all ambient sounds remain as audible as possible. These unique filters also ensure you can still follow conversations. A small duct in the filters prevents a sense of isolation and the shape of the hearing protection prevents water getting into your ears. SwimSafe earplugs are unsuitable for deep diving. We advise using the hearing protection at a depth of no more than 1 meter under water. In addition to the easy-to-use storage container, every SwimSafe pack also contains a trendy Alpine Miniboxx. You can take this super-handy little storage container to the swimming pool and attach it to your swimming bag, or around your wrist when you go into the water. The Miniboxx can also be attached to your wetsuit.