I take this Earplugs for several years to sleep and am very satisfied. I work in shifts and sleep so quite frequently at home during the day. Since it is inevitable that the environment produces a lot of noise. The lawn mower of the neighbors would be an example. The same applies to children playing in the house. These earplugs reduce this noise very intense. When inserted plugs a normal conversation basically is no longer possible. Even a ringing phone in about 30-40cm distance can not wake me as out of sleep. Even with snoring partners they are very practical. Because the plugs are in pairs packed in small bags, they can also be good to take example on holiday, etc. With a little practice can be the stopper easily introduce and adapt to the ear well. Do not stand beyond the pinna and have myself no hard core or similar That's why they do not interfere with the lie. After inserting it takes about 10 seconds, until the plugs have once again fully expanded and fully effective. Who has such earplugs not previously worn, must surely expect a small adjustment period, but that will pass quickly. Actually, these earplugs are disposable products, but in the private sector holds a pair with me quite 3-5 applications. After that, the material properties can be felt but gradually they should be disposed of. The box itself is provided with a sticker that something like an expiration date (period about 2 years) indicates. For me the earplugs were also after 2 years still in a pristine condition unchanged. In my opinion, the earplugs would probably not so good in a work environment that keeps changing between loud and quiet, which use a common and take out requires. For inserting simply takes too long.
