641 Sparague Rappaport
Our exclusive design features an improved valve mechanism that virtually eliminates acoustic leakage and a chestpiece key to facilitate aftermarket service.641 features:
Threaded chestpiece drum of chrome plated zincpermits the use of 5 interchangeable chestpiecefittings-an adult and pediatric diaphragm, and three bells (1-1/4", 1", 3/4"); latex-free, double tube configuration for improved acoustic separation; proprietary valve mechanism eliminates acoustic leakage; adjustable chrome plated brass binaurals; complete with an accessory pouch containing the bell chestpieces, chestpiece key (to facilitate diaphragm replacement), 2 spare diaphragms, one pair of mushroom eartips, and one pair of silicon eartips. Comprehensive owner's manual
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