EN60065 subclause Zx.4.3 specifies requirements for wireless headphones and  
has the following note

NOTE An example of a wireless listening device is a Bluetooth headphone.

It also references EN50332-1 &-2 for the measurement criteria.

I was on the TC committee which wrote the new sound pressure headphone 
requirements in EN60065 and 60950 and the new draft of EN50332-2 which has an 
informative annex on how to test wireless headphones.

The sound pressure requirements are also for standalone "listening devices" not 
sold with a specific portable player and not only for portable players and 
associated headphones.

Carl, If your headphones can only be used with the specified car sound system 
you may be exempt. I asked about our Bose Aviation headsets and it was advised 
that since they are not  sold at regular retail outlets they were exempt so you 
may not need to meet the requirements but I would try to get an official ruling.

-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of John Woodgate
Sent: Friday, March 29, 2013 2:12 PM
To: [email protected]
Subject: Re: USA Lab for Headphone Sound Pressure Level Test per EN 50332-1

In message <[email protected]>, dated Fri, 29 Mar 2013, 
Carl Newton <[email protected]> writes:

>I'm particularly concerned with the reference to Part 2.  The title 
>does point at portable systems and this is not a portable system.
>However, the authors likely didn't have wireless headphones with their 
>own internal amps and volume control in mind when the standard was 
>written.

No, they didn't, because you don't get wireless headphones with a portable 
music player.

Part 2 can't be applied to your wireless headphones, and it doesn't apply to 
headphones not intended to be used with portable music players, which yours 
inherently are not.

But you should limit the maximum sound pressure to 100 dB, as I advised.
--
OOO - Own Opinions Only. See www.jmwa.demon.co.uk Which Thunderbird will David 
Miliband pilot? Or will he drive Lady Penelope?
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK

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