EN
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
(500Hz < f < 2000Hz)
L = Hearing protection estimation for
low frequency sounds (f ≤ 500Hz)
Certified Helmets:
• MSA V-Gard 500
• ENHA Radius
• Arco Champion
• Centurion Nexus
SafeMax™ Technology
ISOtunes® LINK 2.0 Helmet Mount (IT-70)
incorporates SafeMax™ Technology; therefore,
its volume output has been limited to 82
decibels. ISOtunes® devices with SafeMax™
Technology are OSHA and ANSI compliant and,
when designated, meet the European Safety
Standard EN 352.
Cleaning and Maintenance
• Clean your ISOtunes LINK 2.0 Helmet Mount
by gently wiping them with a clean, damp cloth
with mild soap.
• Do not immerse the hearing protector in water.
• Do not use abrasive cleaning solvents to clean
the hearing protector.
• If the hearing protector gets wet from sweat
or rain, please discontinue use and turn the
earmuff outwards and allow to dry.
The ear cushions and foam liners should be
regularly inspected for deterioration, cracking,
or other damage. Replacement hygiene kits can
be purchased at ISOtunes.com.
Materials:
• Ear Cushion: PU + Memory Foam
• Casing: ABS
• Key Pad: Silicon
• Earcup Attachment: Stainless Steel + ABS
• Headband: Stainless Steel + TPE
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• Headband Bracket: ABS
Charging
This product comes with a lithium battery pack.
The battery pack can be recharged by plugging
the cable into a USB outlet and the Micro USB
connector into the product's charging port. The
charging port is on the bottom of the left earcup,
underneath the rubber cover.
Charging voltage should not exceed 5 V.
The batteries can be checked by removing the
battery cover. Slide the latch to release the door.
The lithium battery pack can be removed from
the product and replaced. Slide the latch to
release the battery cover door, and lift the
battery out. Unplug the battery pack cable.
To reinstall, put the battery pack into the
compartment and plug in the battery pack cable
into the battery pack port. Ensure full insertion
for proper product performance. Only replace
battery pack with approved LINK 2.0
replacement battery.
Alternatively, three AAA batteries can power
the device. Completely remove the Lithium
Battery Pack from the product and install the
AAA batteries as indicated on the product. Do
not attempt to use the Lithium Battery Pack and
AAA batteries at the same time.
Dispose of all batteries in accordance with
local regulations.
WARNINGS
ISOtunes® LINK 2.0 Helmet Mount does
an excellent job of blocking outside noise.
As such, ISOtunes® LINK 2.0 Helmet Mount
should NOT be used in environments where
users need to be fully aware of their surroundings
for personal safety reasons. For example, do
NOT use them while driving a car or riding a
motorcycle. Similarly, do NOT use them when
riding a bicycle outside. The user is solely
responsible for ensuring that ISOtunes®
LINK 2.0 Helmet Mount is used ONLY in
safe environments.
These earmuffs are intended to protect
your ears against hazardous noise.
The output of the electrical audio circuit of this
hearing protector may exceed the daily limit
sound level.
The audibility of warning signals at a specific
workplace may be impaired while using the
entertainment facility.
This product may be adversely affected by
certain chemical substances. Further information
may be sought from the manufacturer.
The fitting of hygiene covers to the cushions may
affect the acoustic performance of the earmuffs.
Recommendations
The wearer should ensure the product is properly
cleaned and dry before and after use. Storage
should be in a clean and dry location between
-20 °C and 50 °C. The battery should not be fully
discharged before long term storage.
The wearer should ensure that:
• The hearing protector is fitted, adjusted,
and maintained in accordance with the
manufacturer's instructions.
• The hearing protector is worn at all times
in noisy surroundings.
• The hearing protector is regularly inspected
for serviceability.
If these recommendations are not adhered to, the
protection afforded by the hearing protector will
be severely impaired.
The Size Range of the Earmuff
MSA V-Gard 500: Size L
ENHA Radius: Size M, L
Arco Champion: Size L
Centurion Nexus: Size L
Additional Notes
ISOtunes® LINK 2.0 Helmet Mount is
compliant with Bluetooth® V5.0. We do not
guarantee compatibility of all functions
on every Bluetooth®-enabled device.
Please check your device's user manual for
EN
compatibility and functionality.
The mean mass of the product is 387 g.
Date of Obsolescence: 3 years from purchase
date. Not to be used in Explosive Atmospheres.
Please note, the hearing protector provides an
electrical audio facility for entertainment. The
earmuff provides audio signal sound pressure
level limitation which limits the entertainment
audio signal to 82 dB(A) effective to the ear. This
limit is maintained for Bluetooth signal inputs
which are standard to the Bluetooth A2DP, HFP,
and HSP specifications. There is no analog line
input on this product.
This earmuff is provided with electrical audio
input. The wearer should check correct operation
before use. If distortion or failure is detected, the
wearer should refer to the manufacturer's advice.
For additional information about ISOtunes
LINK 2.0 Helmet Mount, please visit
ISOtunes.com/manuals/LINK-Helmet. For
additional information or questions about
ISOtunes® products or spares and accessories,
please contact our support team.
Replacement Parts: Hygiene Kit (ear-cushions and
foam inserts) - Model Number: IT-83
To replace ear cushions:
1. Put your finger between the
ear cushions and foam.
2. Pull the foam ear cushion
away from the earcup.
3. Remove the foam inserts in the earcup.
4. Install the new foam inserts.
5. Snap the new ear-cushion in place
on the earcup.
The following information shall be available from
the manufacturer on request:
a) Results of tests performed in accordance with
this standard.
b) The name and country of the test laboratory
which performed the tests specified and the
date of the tests.
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