21 C.F.R. § 874.3330 Master hearing aid.
Title 21 - Food and Drugs
(a) Identification. A master hearing aid is an electronic device intended to simulate a hearing aid during audiometric testing. It has adjustable acoustic output levels, such as those for gain, output, and frequency response. The device is used to select and adjust a person's wearable hearing aid. (b) Classification. Class II.
Title 21: Food and Drugs
PART 874—EAR, NOSE, AND THROAT DEVICES
Subpart D—Prosthetic Devices
§ 874.3330 Master hearing aid.
