ISOtunes FREE AWARE Manual página 13

The ISOtunes FREE Aware comes with 3 sets of TRILOGY™ foam
eartips (S,M,L), 3 sets of TRILOGY™ short foam eartips (S,M,L),
and 1 set of triple flange silicone eartips. Choose the size that fits
best in your ear canal. Remember, the snugger the fit, the better
the noise blocking. The silicone eartips are not tested for noise-
attenuation and should not be used in noisy environments.
Fitting
1. Carefully compress the foam eartip on the stem/sound port.
2. Insert the eartip into your ear as deeply as comfortable
3. Slightly rotate earbud until it is secure in the bowl of your ear.
4. Make the earbud rest tightly next to your inner ear edge.
Introduction
Thank you for purchasing ISOtunes® FREE Aware True Wireless
Noise-Isolating Earbuds. These earbuds have been specifically
designed for use in noisy environments – allowing you to block
out much of the surrounding noise so that you can listen to your
music or talk on the phone with less interruption.
Controls
[See the Quick Start Guide]
Only charge your ISOtunes FREE Aware with a Maximum 5 Volt
charger. Using a charger higher than 5 Volts could be dangerous
and may damage your ISOtunes product. Be especially careful
with "quick charge" or "turbo charge" chargers, which often
supply 9, 12, or 15 Volts. Your ISOtunes FREE Aware cannot be
charged at voltage levels above 5 volts.
Noise Attenuation APPROVAL
This product has been tested to the European Safety Standard
EN 352-2:2020 and the ANSI S3.19-1974 standard for a hearing
protector, with a Single Number Rating (SNR) of 32 dB and a Noise
Reduction Rating (NRR) of 25 dB.
ANSI S3.19-1974
The level of noise entering a person's ear, when ISOtunes® FREE
Aware earbuds 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.
A1: Frequency (Hz)
A2: Mean Attenuation (dB)
A3: Standard Deviation (dB)
Example:
1. The surrounding noise level measured at the ear is 100 dB.
2. The NRR of ISOtunes® FREE Aware is 25 dB.
3. The noise level entering the ear is
approximately equal to 75 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
EN 352
The product has been tested and approved in accordance
with PPE standards: EN 352-2:2020, EN 352-7:2020,
EN 352-9:2020 and EN 352-10:2020.
The earplugs are provided with level-dependent attenuation
and safety-related audio input Check correct operation
before use. If distortion or failure is detected, refer to the
troubleshooting advice.
The typical period of continuous use that can be expected
when fully charged is 13 hours. Battery life performance may
deteriorate beyond this time and with normal usage.
The output of the audio circuit of the hearing protector may
exceed the exposure limit level.
noise, such as gunfire.
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