Etymotic Research

ER1 by Etymotic Research was designed to imitate the normal resonance of the open ear, and is used for speech audiometry where the goal is to reproduce the same frequency response at the eardrum for speech as would be produced in the live situation.

For research with humans and animals when a 16 kHz bandwidth is required.

ER3C™ earphones are the next generation of insert earphones, replacing ER3A earphones, which have been the worldwide standard for audiometric insert earphones since 1985. 10 Ohm or 50 Ohm model available.

Replacement Foam Tips - Small size (10mm). 50 tips per pack (please indicate for which device: ER1 / ER2 or ER3C).

Replacement Foam Tips - Regular size (13mm). 50 tips per pack (please indicate for which device: ER1 / ER2 or ER3C).

Replacement Foam Tips - Large size (18mm). 24 tips per pack (compatible with ER3C earphone only).

Sound Delivery Tube Adapters for ER Tubal Inserts Earphones. 10 adapters per pack. Make sure to chose correct type for either ER1 / ER2 or ER3C.

Sound Delivery Tubes for ER Tubal Inserts Earphones. 2 pairs per pack (red and blue). Make sure to chose correct type for either ER1 / ER2 or ER3C.