This E-A-RTONE™ 3A Insert Earphone accessory is a clear, polyurethane 9.85" replacement sound ("front") tube for all standard E-A-RTONE™ 3A Insert Earphone models.
By directly coupling to the test subject's ear canal, via disposable foam E-A-RLINK™ eartips, the E-A-RTONE™ 3A Insert Earphone for audiometric testing provides both performance and reliability advantages over traditional supra aural earphones. Benefits (in comparison to supra aural/TD H style earphones) include;
Improved ambient noise attenuation
Greater interaural attenuation
Facilitated infection control (via disposable eartips)
Elimination of collapsed canal artifact
Better Test/Retest Reliability
Reduced Occlusion Effect for BC testing
This E A RTONE™ 3A Insert Earphone accessory is a clear, polyurethane 9.85" replacement sound ("front") tube for all standard E A RTONE™ 3A Insert Earphone models. Front tube replacement is recommended on an annual basis or as required.
|Hong Kong||Fall Protection & 3M Scott Safety Sales Development Manager||Escher Leung||(852) 2806 6283|