Etymotic ER-3C Insert Earphones Model:ER-3C 10 Ohm with the included software suite

with the included software suite and you're ready to go

this is a great option for basic wax cleaning and management of hearing aids

which reduces the need for masking

Mega-Sil 108E peach impression material is a non-greasy impression material with a medium to thick consistency and final shore value of 30

20 foam eartips (small

Etymotic ER-3C Insert Earphones Model:ER-3C 10 Ohm with the included software suiteThe Etymotic ER 3C Earphones are basically updated and improved on the ER 3A inserts and have incorporated "touch proof" electrical connection for safety. They have a smooth frequency response and provide 30dB of isolation between ears, which reduces the need for masking. Compared to supra aural headphones, they reduce test retest variability and eliminate test errors due to collapsed ear canals. They may be calibrated in a 2 cc coupler, occluded ear