Crescendo PRO Amplified 20

Amplified 20 (a.k.a. Crescendo Vocals, Guitar, DJ) has been designed specifically for musicians and music lovers.
The patented membrane filter technology provides the core of protection ensuring clarity of sound with full music dynamics whilst allowing speech to be heard. Crescendo Amplified 20 provides you a tuned, flat attenuation response so all frequencies are reduced by the same level, which makes it the best high fidelity hearing protection on the market.