Howard Leight Sync Hi-Vis AM/FM Radio Ear Muffs — NRR 25, 1030390 spr658 6400 Rockets vs 6430 Alphas:

6400 Rockets vs 6430 Alphas: 6430 Alphas is NRR 27 (reusable flanged)

and C coverage

That is a regulatory limit on the filter

dry place away from contaminants

Less than the 25 dB label

Howard Leight Sync Hi-Vis AM/FM Radio Ear Muffs — NRR 25, 1030390 spr658 6400 Rockets vs 6430 Alphas:EDITORIAL REVIEW: 4. 4 5 WC Safety Review of the Howard Leight Sync radio ear muff, a passive NRR 25 hi vis muff with a built in AM FM radio. Editorial assessment by Steven Eaton, WC Safety editor, based on published Howard Leight specifications and category fit. We did not laboratory test this product. The Howard Leight Sync (1030390) is a passive NRR 25 ear muff to ANSI S3. 19 with an integrated digital AM FM radio and a 3. 5 mm aux input, in a hi