21 CFR § 874.3305 - Wireless air-conduction hearing aid.

---
identifier: "/us/cfr/t21/s874.3305"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 874.3305 - Wireless air-conduction hearing aid."
title_number: 21
title_name: "Food and Drugs"
section_number: "874.3305"
section_name: "Wireless air-conduction hearing aid."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "H"
subchapter_name: "MEDICAL DEVICES"
part_number: "874"
part_name: "EAR, NOSE, AND THROAT DEVICES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 351, 360, 360c, 360e, 360j, 360 371."
regulatory_source: "51 FR 40389, Nov. 6, 1986, unless otherwise noted."
cfr_part: "874"
---


# 874.3305 Wireless air-conduction hearing aid.

(a) *Identification.* A wireless air-conduction hearing aid is a wearable sound-amplifying device, intended to compensate for impaired hearing that incorporates wireless technology in its programming or use. A wireless air-conduction hearing aid is subject to the requirements in § 800.30 or § 801.422 of this chapter, as applicable.

(b) *Classification.* Class II (special controls). The special controls for this device are:

(1) Performance data must demonstrate the electromagnetic compatibility (EMC), electrical safety, and thermal safety of the device;

(2) Performance testing must validate safety of exposure to non-ionizing radiation; and

(3) Performance data must validate wireless technology functions.

(c) *Premarket notification.* The wireless air-conduction hearing aid is exempt from the premarket notification procedures in subpart E of part 807 of this chapter subject to § 874.9.

[76 FR 34846, June 15, 2011, as amended at 87 FR 50762, Aug. 17, 2022]