ISOtunes IT-34 LINK Aware Foam Hearing Protection Earmuffs Bluetooth Instruction Manual

ISOtunes IT-34 LINK Aware Foam Hearing Protection Earmuffs Bluetooth

Fitting

The headset is labeled and adjustable for your convenience.

1. Remove the white foam padding from each earcup.
2. Check the earcups for Right and Left labels.
3. Adjust the earcups, headband, and wires for a snug but comfortable fit.
4. Make sure the earcup labels correspond to the sides of your head and place on your ears.

Location of Controls

1. Music Volume Up
2. Music Volume Down
3. Aware Volume Up
4. Aware Volume Down
5. Multi-Function Button (MFB)
6. Bluetooth Mic
7. Charge Port
8. LED Charging Indicator
9. Battery Cover Latch 1

Aware TechnologyTM
This product includes Aware Technology. This is a microphone technology that allows the user to hear the world around them, but always at a safe listening level. When ambient noise breaches a safe listening level, the microphone technology immediately responds and attenuates to a safe level.

This feature automatically turns on when the product turns on. Adjusting the Aware Volume is easy. Simply press the Aware Volume Up (3) and Down Button (4).

Charging

The Lithium Battery Pack comes fully installed. Please make sure the Battery Pack Cable is plugged in to the Battery Pack Port (2).
The Lithium Battery Pack holds a 14+ hour charge.

1. Slide the Battery Cover Latch (9) “up” towards the headband to release the Battery Cover.

2. When using the Lithium Pack, always make sure the Battery Pack’s cable is plugged into the Battery Pack Port in the battery compartment (please note, the battery comes fully installed).
   Charging
   The headset can be powered by the included rechargeable Lithium Battery Pack. The Lithium Battery Pack holds a 14+ hour charge.

3. Please charge with the included cable by plugging it into the Charging Port (7)
   Charging voltage should not exceed 5v.

4. While the cable is plugged into the Charging Port (7), LED Charging Indicators (8) will let you know how charged the Lithium Battery is.
   LED Charging Indicators

• Solid Red = Charging (Cable Plugged In)
• Solid Green = Fully Charged (Cable Plugged In)

Batteries

The headset can also be powered by 3 AAA Batteries (not included). 3 AAA Batteries hold a 24+ hour charge and will need to be replaced.

1. Slide the Battery Cover Latch (9) “up” towards the headband to release the Battery Cover.
2. Remove the Lithium Battery Pack and place your 3 AAA Batteries. When using AAA batteries, please ensure you have properly oriented the batteries.

Power On/Off

Power On: Press and hold MFB (5) for 3 seconds (you will hear “Power On”)
Power Off: Press and hold MFB (5) for 3 second (you will hear “Power Off ”)

Bluetooth Pairing

After powering on, the headphones will automatically enter Pairing Mode.(you will hear “Bluetooth Pairing Mode”)

1. Open your Bluetooth settings on your device.
2. Search “ISOtunes LINK Aware.” Pair and connect. Once connected you will hear “Bluetooth Connected.”

Dual Connect Mode
This product can connect to two devices at the same time such as your phone and your computer.

1. Pair and Connect to your first device as described in Bluetooth Pairing. This will be device A.
2. Press and Hold the MFB (5) for 7 seconds until you hear “Bluetooth Pairing Mode” (you will hear Power Off, keep holding the button until you hear “Bluetooth Pairing Mode”)
3. Pair and Connect to the 2nd device as described in Bluetooth Pairing. This will be device B.
4. On Device A, go to the Bluetooth menu and manually connect to ISOtunes LINK Aware.
5. Both devices are now connected.

Pairing Reset
Press and Hold the Volume Up (1) and the Volume Down (2) for 4 seconds. The product will enter pairing mode.

Music

• Play/Pause: Short single press MFB (5)
• Next Track: Double press MFB (5)
• Previous Track: Triple press MFB (5)
• Music Volume Up: Short single press Volume Up (1)
• Music Volume Down: Short single press Volume Down (2)
• Aware Volume Up: Short single press  Volume Up (3)
• Aware Volume Down: Short signle press Volume Down (4)

Phone Calls

• Answer/End Call: Short single press MFB (5)
• Reject Call: Press and hold MFB (5) for 1 second

Siri / Google Assistant
Press and hold MFB (5) for 1 second

Fitting

ANSI S3.19-1974 Table (NRR Table)

A1: Frequency, Hz| 125| 250| 500| 1000| 2000| 3150| 4000| 6300| 8000| NRR
---|---|---|---|---|---|---|---|---|---|---
A2: Grand Mean Attenuation, dB| 19.9| 22.3| 27.8| 30.8| 38.8| 44.3| 50.0| 46.3| 42.4| 25
A3: Standard Deviation, dB| 3.7| 2.9| 2.4| 2.3| 3.8| 3.9| 3.8| 3.1| 4.3

EN 352-1:2002 Table (SNR Table)

B1: Frequency (Hz)| 125| 250| 500| 1000| 2000| 4000| 8000
---|---|---|---|---|---|---|---
B2: Mf (dB)| 17.5| 21.4| 26.6| 29.3| 37.6| 46.4| 39.6
B3: sf (dB)| 4.5| 2.5| 2.6| 2.3| 3.7| 4.6| 6.8
B4: APVf| 13.0| 18.9| 24.0| 27.0| 33.9| 41.8| 32.8

B5: SNR=30dB H=34dB M=27dB L=21dB APVf=MF-SF (dB)

EN 352-4 Level Dependent Criterion Level

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

Models

• IT-34 ISOtunes LINK Aware
• IT-35 ISOtunes LINK Aware EN 352

Important

• Please read, understand, and follow all safety information.
• Full manual can be found at ISOtunes.com/LINKAwareManual

Fitting

1. Remove 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 Aware 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 EN352-1:2002, 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 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 Aware is tested and approved in accordance with ANSI S3.19-1974 Specifications and the European Safety Standard EN 352-
1:2002, EN 352-4:2001, EN 352-6:2002, and EN 352-8:2008.
This earmuff is provided with level dependent attenuation. The wearer should check correct operation before use. If distortion or failure is detect-ed, the wearer should refer to the manufacturers advice for maintenance and replacement of the battery.

ANSI S3.19-1974
The level of noise entering a person’s ear, when ISOtunes® LINK Aware headphones are worn as directed, is closely approximated by the difference between the A-weighted environmental noise level and the Noise Reduc-tion 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 Aware 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
This product is certified according to the product standards EN 352-1:2002, EN 352-4:2001, EN 352-6:2002, and EN 352-8:2008.
Haven Technologies hereby declares that IT-35 ISOtunes LINK Aware
EN 352 conforms to the regulation (EU) 2016/425 and the directive RED 2014/53/EU which can be accessed at
www.ISOtunes.co.uk/EU-declaration-of-conformity.

• 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)

Criterion level is the sound pressure level in dB(A) of the noise environment resulting in 85 dB(A) effective to the ear while wearing hearing protectors. Three different criterion levels are defined related to the frequency content of the noies.

• C1: H = criterion level for high-frequency noise
• C2: M = criterion level for medium-frequency noise
• C3: L= criterion level for low-frequency noise

SafeMax™ Technology
ISOtunes® LINK Aware incorporates SafeMax™ Technology, therefore its volume output has been limited to 85 decibels (IT-34) and 79 decibels (IT-35). ISOtunes® devices with SafeMax™ Technology are OSHA, and ANSI compliant and, when designated, meet the European Safety Standard EN352.

Aware Technology™
This product includes Aware Technology. This is a microphone technology that allows the user to hear the world around them, but always at a safe listening level. When ambient noise breaches a safe listening level, the mi-crophone technology immediately responds and attenuates to a safe level.
This feature automatically turns on when the product turns on. Adjusting the Aware volume is easy. Simply press the Aware Volume Up and Down Button.

Cleaning and Maintenance

• Clean your ISOtunes LINK Aware 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 deterio- ration, cracking, or other damage.

Materials

• Ear Cushion: PU + Memory Foam•
• Casing: ABS
• Key Pad: Silicon
• Headband: Stainless Steel + TPE
• Headband Bracket: ABS

This product comes with a Lithium Battery Pack. The Battery Pack can be recharged by plugging the one end of the included cable into a USB outlet and the other end into the product’s charging port located underneath the rubber cover on the bottom of the left earcup.

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. 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 the battery pack cable is plugged into the battery pack cable port for proper product performance.

Alternatively, three AAA batteries can power the device. Completely re-move the Lithium Battery Pack from the product and install the AAA batter-ies as indicated on the product. Do not attempt to use the Lithium Battery Pack and AAA batteries at the same time.

Automatic Power Off
ISOtunes® LINK Aware will turn off automatically after 4 hours of use.

WARNINGS
Performance may deteriorate with battery use. The typical period of contin- uous use that can be expected from ear-muff battery is 11 hours.
The output of the level-dependent circuit of this hearing protector may ex- ceed the external sound level.

ISOtunes® LINK Aware does an excellent job of blocking outside noise. As such, ISOtunes® LINK Aware should NOT be used in environments where users need to be fully aware of their surroundings for personal safety rea-sons. For example, do NOT use them while driving a car or riding a motor-cycle. Similarly, do NOT use them when riding a bicycle outside. The user is solely responsible for ensuring that ISOtunes® LINK Aware is used ONLY in safe environments.

The output of the electrical audio circuit of this hearing protector may exceed the daily limit sound level.
These earmuffs are intended to protect your ears against hazard noise.

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, such as sunscreen and bugspray. Further information may be sought from the manufacturer.

The fitting of hygiene covers to the cushions may affect the acoustic perfor- mance of the ear-muffs

Recommendation
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 accor dance 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 for the earmuff is S M L.
• The mean mass of the product is 430g.
• Date of Obsolescence: 3 years from purchase date.
• Not to be used in Explosive Atmospheres.

Additional Notes
ISOtunes® LINK Aware is compliant with Bluetooth® V4.2. We do not guar-antee compatibility of all functions on every Bluetooth®-enabled device. Please check your device’s user manual for compatibility and functionality.

Please note, the hearing protector provides an entertainment audio facility. The ear-muff 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 Aware please visit www. ISOtunes.com/LINKAwareManual. 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

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 re- quest:

• 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.

FCC

Caution: The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the users’ authority to operate the equipment.

Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful inter- ference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communica- tions. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equip- ment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.

This equipment complies with FCC‘s RF radiation exposure limits set forth for an uncontrolled environment. End users must follow the specific oper-ating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
UK & Europe
uk-eurosupport@isotunesaudio.com
North America
support@isotunesaudio.com
1-844-396-3737
Monday-Friday 9-5 ET

References

• Product Manuals
• ISOtunes® | Bluetooth Hearing Protection | Wireless Ear Defenders
• ISOtunes Product Manuals | Download User Manuals – ISOtunes®
• Product Manuals

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