Paragraph 23 Wireless Audio Applications
Wireless telegraphy apparatus designed or adapted–
(a)
for Telephony, for the purpose of providing a short range radio link between the audio output of a device, so as to be capable of use on one or more frequencies within the frequency band, and at a radiated level not exceeding the maximum for such frequencies or frequency bands, for each category of apparatus, specified in the table below and subject to the following sub-paragraphs;
(b)
categories i and ii are for cordless headphones or cordless loudspeakers;
(c)
category iii is for cordless headphones for use in vehicles;
(d)
category iv is for cordless headphones for use with personal stereo devices–
| Category | Frequencies or frequency band | Radiated level | Channel bandwidth | Music or speech permitted | Duty cycle | ETSI standard |
|---|---|---|---|---|---|---|
| i | 36.61–36.79 MHz 37.01–37.19 MHz | 10 μW erp | — | Yes | — | EN 300 220–1 |
| ii | 863–865 MHz | 10 mW erp | ≤ 300 kHz | Yes | — | EN 301 357 |
| iii | 863–865 MHz | 2 mW erp | ≤ 300 kHz | Yes | — | |
| iv | 863–865 MHz | 1 mW erp | ≤ 300 kHz | Yes | — |