The average rock concert is 115 dBA, which people can safely be exposed to for only 15 minutes a day. This is dangerous for concertgoers, but even more for the musicians performing those concerts.
Most musicians dont like hearing protection because they can't hear their music. Ordinary plugs cut off high frequency sound, which means what you hear is mostly just the mid range and low frequencies. As a result, voices are difficult to understand and music sounds distorted. Natural Sound (or high fidelity) ear plugs solve this problem by reducing the volume without distorting sounds.
Unlike cheap foam plugs that muffle and distort what you hear ER-20 Ear Plugs feature a patented tuned resonator and acoustic resistor to reduce all sound 20db evenly across the frequency range just enough to prevent damage to your hearing, but not so much that you lose the enjoyment of the music. Speech and music stay clear, just quieter, like turning down the volume.
The ER-20 from Etymotic Research has an NRR of 12 rather than 20 because the frequency weighting used in the NRR calculation assumes blocking of higher frequencies more than of lower frequencies and these plugs do not do that. They are designed to let you hear the full range of music.
There are no electronics to fail, moving parts to break, or batteries to replace, also as it is a filter it lets air pass through avoiding the stuffy, plugged up feeling of foam earplugs.
ER-20 plugs are washable, reusable and durable. With care they will last for months even with daily use. Each pair of plugs includes a carrying case to keep dust and dirt off them.
The triple flange design produces a good seal for average to large ears and fit most adults.
These are THE best selling natural sound plugs in the US and are recommended by leading audiologists.
The inconspicuous transparent colour means most people wont even notice youre wearing them.
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Originally Posted by xerxesdaphat
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