Use and Care Manual

Operating Your ISOtunes

WIRED

Noise-ISOlating Earbuds

Insert the headphone jack into the music source.

Multifunction Button (MFB):

1. Answering calls: Press the MFB once

2. Ending Calls: Press the MFB once

3. Play/Pause Music: Press the MFB once

4. Next song: Press the MFB twice

Adjust Volume:

Volume Up Button (+)

Volume Down Button (-)

Noise Attenuation

APPROVAL: ISOtunes

WIRED is tested and approved in accordance

with ANSI S3.19-1974 Speciﬁ cations.

The level of noise entering a person’s ear, when ISOtunes

WIRED headphones

are worn as directed, is closely approximated by the difference between the

A-weighted environmental noise level and the Noise Reduction Rating (NRR).

Improper ﬁ t of this device will reduce its effectiveness in attenuating noise.

Consult the enclosed instructions for proper ﬁ tting.

Example:

1. The surrounding noise level measured at the ear is 99 dB.

2. The NRR of ISOtunes

WIRED is 29 dB.

3. The noise level entering the ear is approximately equal to 70 dB.

Please note that the NRR is based on the attenuation of continuous noise and may not be

an accurate indicator of the protection attainable against impulsive noise, such as gunﬁ re.

Frequency, Hz 125 250 500 1000 2000 3150 4000 6300 8000 NRR

Grand Mean Attenuation, dB 32.0 32.1 36.5 38.7 36.7 42.3 42.7 44.9 46.3

Standard Deviation, dB 5.8 5.1 4.6 4.0 2.6 3.6 2.4 3.6 3.9

EN EN