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Operating Your ISOtunes
Noise-ISOlating Earbuds
Simply insert the headphone jack into the music source.
Muti-function key on mic controller:
1. Answer calls: Short press once
2. Hang up calls: Short press once
3. Music play: Short press once
4. Pause music: Short press once
5. Next song: Double click
6. Previous song: Quick press three times
7. Voice function: Long press 2 seconds
WIRED
™
Noise Attenuation
APPROVAL: ISOtunes
WIRED is tested and approved in accordance
™
with ANSI S3.19-1974 Specifications.
Frequency, Hz
125
250
500
Grand Mean Attenuation, dB
32.0
32.1
36.5
Standard Deviation, dB
5.8
5.1
4.6
The level of noise entering a person's ear, when ISOtunes
are worn as directed, is closely approximated by the difference between the
A-weighted environmental noise level and the Noise Reduction Rating (NRR).
Improper fit of this device will reduce its effectiveness in attenuating noise.
Consult the enclosed instructions for proper fitting.
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 gunfire.
1000
2000
3150
4000
6300
8000
NRR
38.7
36.7
42.3
42.7
44.9
46.3
29
4.0
2.6
3.6
2.4
3.6
3.9
WIRED headphones
™
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