ADC's legendary Sprague with stealth black chrome for a striking appearance. The 646ST features a threaded chestpiece drum that permits the use of five interchangeable chestpiece fittings - an adult and pediatric diaphragm, and three bells (1 1/4", 1", 3/4") - for complete diagnostic capability in most patients.
- All metal parts finished in black chrome for a striking appearance
- Latex-free double tube configuration
- Proprietary valve mechanism eliminates acoustic leakage
- Adjustable binaurals
- Complete with an accessory pouch containing the bell chestpieces, chestpiece key, 2 spare diaphragms, one pair of mushroom eartips, and one pair of silicon eartips
- Weighs 8 oz.
- Overall Length 30"/li>
- Inspected and packaged in the U.S.A.