LEGALITIES
Fitting
R
FIG 2
FIG 1
ANSI S3.19-1974 Table (NRR Table)
EN 352-1:2020 Table (SNR Table)
Audio Input (EN 352-6)
Bluetooth (HFP): The maximum SPL is 76.4 dB(A) at -14 dBFS
Entertainment (EN 352-8)
Bluetooth (A2DP): The maximum SPL is 77.1 dB(A) at -10 dBFS
EN 352-6:2020 Table (SNR Table)
Relationship between sound output level and input voltage
Input Level dBFS
-39
Sound pressure level [dB(a)]
76.1
The maximum sound pressure level is 76.4 db(A) at -14 dBFS
The usage time for the maximum input signal that corresponds
to an equivalent sound output level of 82 dB(A) over 8 h is: 8h
at -14 dBFS
FIG 3
B5:
SNR: 30 dB
H= 34 dB
M= 27 dB
L= 21 dB
APVf=MF-SF9 (dB)
-34
-29
-24
-19
-14
76.1
76.1
76.2
76.3
76.4
Models
IT-48 LINK 2.0
IT-49 LINK 2.0 EN 352
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
EN | 13