what is the difference between the alpine classic and alpine pro

Alpine Pro has a 3rd set of filters (the white ones) that offer lower sound-dampening (and protection) than the silver and gold filters which are also offered in the Alpine Classic. The Pro also has a 3rd silicone case for the filters and the little string attachment which might be convenient but that I've never used. I had the Classic and I bought the Pro because with the silver filters (the lowest offered in the Classic) it was difficult to talk with band-mates during rehearsal without taking them off and putting them back in all the time. With the white filters that are only available in the pro, I don't have to take them off between songs.

How long do they last?

I’ve had mine for a few years, using them intermittently. (I’ve probably used them about 100 times.) As far as I can tell, there’s no appreciable wear; they seem to be in their original condition.

ASIN	B00MEE876O
Color Name	Black
Customer Reviews	4.3 4.3 out of 5 stars (1,937)
Date First Available	September 1, 2014
Is Discontinued By Manufacturer	No
Item Weight	1.41 ounces
Item model number	AMS-MUSICSAFE-PRO-BLK
Material Type	AlpineThermoShape™
Product Dimensions	3.6 x 1.2 x 9 inches
Size	1 Count (Pack of 1)

Alpine MusicSafe Pro Hearing Protection System for Musicians, Black

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