Important
Please read, understand, and
follow all safety information.
Fitting
1. Remove the white foam inserts from each
earcup
2. Pull the earcups apart
3. Place the product on your head
4. Adjust the earcup position by extending
the headband to ensure a good fit around
the ears
Introduction
Thank you for purchasing ISOtunes® LINK 2.0
Professional Noise Isolating Earmuffs. These
earmuffs 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. This product has been tested
and meets the European Safety Standard EN
352-1:2020, EN 352-6:2020, EN 352-8:2020, RED
directive 2014/53/EU, harmonized standard EN
60065-2014+A11-2017, EN 62479:2020, ETSI EN 300
328 V2.1.1, ETSI EN 301 489-1 V2.1.1,ETSI EN 301
489-17 V3.1.1 and the ANSI S3.19-1974 standards
for a hearing protector, with a Single Number
Rating (SNR) of 30 dB with a Noise Reduction
Rating (NRR) of 25 dB. Full testing details are
available in the Noise Attenuation section of
this booklet.
Noise Attenuation
APPROVAL: ISOtunes® LINK 2.0 is tested and
approved in accordance with ANSI S3.19-1974
Specifications and the European Safety Standard
EN 352-1:2020, EN 352-6:2020, and EN 352-8:2020.
ANSI S3.19-1974
The level of noise entering a person's ear, when
ISOtunes® LINK 2.0 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 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® LINK 2.0 is 25 dB.
3. The noise level entering the ear is
approximately equal to 75dB.
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.
EN 352
IT-49 ISOtunes LINK 2.0 EN 352 is certified
according to the product standards EN 352-1:2020,
EN 352-6:2020, and EN 352-8:2020.
Haven Technologies, INC. hereby declares that
IT-49 ISOtunes LINK 2.0 EN 352 conforms to the
regulation (EU) 2016/425 and the directive RED
2014/53/EU, which can be accessed at ISOtunes.
eu/documents
B1: Frequency (Hz)
B2: Mean Attenuation (dB)
B3: Standard Deviation (dB)
B4: Assumed Protection Value (APV) (dB)
B5:
H = Hearing protection estimation for high
frequency sounds (f ≥ 2000Hz)
M = Hearing protection estimation for
medium frequency sounds
(500 Hz < f < 2000Hz)
L = Hearing protection estimation for low
frequency sounds (f ≤ 500Hz)
AS/NZS 1270
The reported attenuation will be obtained only
if the protector is in good condition and worn as
directed by AS/NZS 1269.3.
Clamp Force: 10 N
Mass: 544 g
Product Lifetime: 3 years
D1: Means
D2: Standard Deviation
D3: Means - Standard Deviation
SafeMax™ Technology
ISOtunes® LINK 2.0 incorporates SafeMax™
Technology, therefore its volume output has been
limited to 85 decibels (IT-48/48B) and 82 decibels
EN
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