ISOtunes FREE 2.0 Hearing Protection Instruction Manual

ISOtunes FREE 2.0 Hearing Protection

Fitting

1. Carefully roll the foam ear tip on the stem/sound port (Fig. 1).
2. Insert the eartip into your ear as deeply as comfortable (Fig. 2).
3. Slightly rotate the earbud until it is secure in the bowl of your ear (Fig. 3).
4. Make the earbud rest tightly next to your inner ear edge.

Location of Controls

Left Earbud Functionality

VOLUME

• UP (+): Single Press
• DOWN (-): Double Press

Right Earbud Functionality

MUSIC

• Play/Pause: Single Press
• Next Track: Double Press
• Previous Track: Triple Press

PHONE CALL

• Answer: Single Press
• End/Reject Call: Long Press, 2 Seconds
• Mute/Unmute Microphone: Single Press

VOICE ASSISTANT

• Initiate Voice Assistant: Long Press, 2 Seconds

Charging the Earbuds

There are three batteries to charge:

• Charging Case Battery
• Left Earbud Battery
• Right Earbud Battery

Place earbuds into the charging case. The earbuds’ LED indicator light (A) should be solid red, indicating that the earbuds are charging. If the LED indicator light doesn’t appear, refer to the troubleshooting section at the end of this manual.

Earbud LED Indicator Light (A)

• Solid Red = Charging (Earbuds in case)
• No Light = Fully Charged (Earbuds in case)

Charging the Case

Insert a USB-C charging cable to charge the case. The charging case battery indicator light (B) will start flashing to indicate the charge level.

Charging Case Indicator Light (B)

• x1 = 25% Charged
• x2 = 50% Charged
• x3 = 75% Charged
• x4 = 100% Charged
• Fully Charged

IMPORTANT CHARGING INFORMATION
Please charge with the included USB-C cable by plugging it into the charging port.

The charging voltage should not exceed 5V.

Power On/Off

Method 1

• Power ON: Remove earbuds from the charging case.
• Power OFF: Place earbuds into the charging case.

Method 2

• Power ON: In OFF mode, press and hold the multi-function button (MFB) (C) for 3 seconds.
• Power OFF: In ON mode, press and hold MFB for 6 seconds.

Bluetooth Pairing

After powering on, the headphones will automatically enter pairing mode. You will hear “Bluetooth Pairing Mode” and the LED indicator light (A)(A) will flash, alternating blue and red on both earbuds.

• Open your Bluetooth settings on your device.
• Search “ISOtunes FREE 2.0” Pair and connect. Once connected you will hear “Bluetooth Connected.”

Music Controls

Right Earbud

• Play/Pause: Single press of the MFB
• Next Track: Double press the MFB
• Previous Track: Triple press of the MFB

Left Earbud

• Volume Up (+): Single press of the MFB
• Volume Down (-): Double press the MFB

Phone Calls

Right Earbud

• Answer: Single press of the MFB
• End/Reject Call: Double press the MFB
• Mute/Unmute Microphone: Single press of the MFB

Siri/Google Assistant
Press and hold MFB for 2 seconds.

Factory Reset

For issues with powering off, pairing, or multi-function button functionality we recommend a factory reset. As a result, Bluetooth will be disconnected and the device will need to be repaired.

1. Remove “ISOtunes FREE 2.0” from your paired Bluetooth devices in your smartphone.
2. Open the charging case with the earbuds inside and press both earbud multi-function buttons for ten seconds.
3. LED lights on the earbuds will flash to indicate a successful pairing reset.
4. Follow the Bluetooth pairing instructions to repair your device.

Legalities

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| 30.1| 29.0| 37.2| 36.9| 35.8| 36.2| 36.6| 42.7| 45.6| 25
A3: Standard Deviation, dB| 3.7| 3.5| 4.2| 4.1| 3.9| 4.6| 5.4| 5.2| 4.2

EN 352-2:2020 Table (SNR Table)

B1: Frequency, Hz| 63| 125| 250| 500| 1000| 2000| 4000| 8000
---|---|---|---|---|---|---|---|---
B2: mF (dB)| 26.3| 31.2| 29.7| 33.7| 35.1| 33.5| 32.6| 44.3
B3: sf (dB)| 4.4| 4.8| 4.0| 6.4| 6.7| 3.5| 3.7| 4.0
B4: ADVf| 21.9| 26.4| 25.7| 27.3| 28.4| 30.0| 28.9| 40.3

H = 30 dB M = 29 dB L = 27 dB APVf=MF-SF (dB)

Bluetooth® (HFP)

Bluetooth® (A2DP)

• Maximum sound level: 80.0 dB(A) at -10 dBFS

Relationship between sound output level and input signal level

Input signal level [dBFS]| -54| -49| -44| -39| -34| -29| -24| -19| -14
---|---|---|---|---|---|---|---|---|---
SPL [dB(A)]| 70.2| 75.2| 80.2| 82.2| 82.3| 82.3| 82.6| 83.0| 85.3

Important
Please read, understand, and follow all safety information. This hearing protector is specifically designed for use in noisy environments, provided it is properly used and the protector remains clean and undamaged.

Models

• IT-72 : ISOtunes FREE 2.0 EN 352
• IT-73, IT-74 : ISOtunes FREE 2.0

Full manual can be found at ISOtunes.com/manuals
The ISOtunes FREE 2.0 comes with 3 sets of TRILOGY™ Short foam ear tips (S, M, L), and 3 sets of double flange silicone ear tips (S, M, L). Choose the size that fits best in your ear canal. Remember, the snugger the fit, the better the noise reduction. The silicone ear tips are not tested for noise attenuation and should not be used in noisy environments.

Fitting

1. Carefully roll the foam ear tip on the stem/sound port (Fig. 1).
2. Insert the eartip into your ear as deeply as comfortable (Fig. 2).
3. Slightly rotate the earbud until it is secure in the bowl of your ear (Fig. 3).
4. Make the earbud rest tightly next to your inner ear edge.

Improper or careless insertion of the eartip into the ear could cause damage to the inner ear.

Introduction
Thank you for purchasing ISOtunes® FREE 2.0 Bluetooth® 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
For an overview of product controls, see the Quick Start Guide included in the packaging or reference the Online Manual at ISOtunes.com/manuals

Power On/Off

Method 1

• Power ON: Remove earbuds from the charging case.
• Power OFF: Place earbuds into the charging case.

Method 2

• Power ON: In OFF mode, press and hold the multi-function button (MFB) for 3 seconds.
• Power OFF: In ON mode, press and hold MFB for 6 seconds.

Bluetooth® Pairing
After powering on, the earbuds will automatically enter Bluetooth® Pairing Mode. Look for quick red and blue flashes from the earbud as confirmation. Open the Bluetooth® settings on your device. Search for “ISOtunes FREE 2.0”. Pair and connect. You will hear “Bluetooth® Connected” once connected.

Charging
There are three batteries to charge:

1. Charging Case Battery
2. Left Earbud Battery
3. Right Earbud Battery

Charging the Case
Insert a USB type C charging cable into the charging case. The charging case battery indicator light will start flashing to indicate the charge level.

Charging the Earbuds
Place earbuds into the charging case. The earbuds’ red indicator light should be solid red, indicating that the earbuds are charging.

Only charge your ISOtunes FREE 2.0 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 “turbocharge” chargers, which often supply 9, 12, or 15 Volts. Your ISOtunes FREE 2.0 cannot be charged at voltage levels above 5 volts.

Noise Attenuation
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 31 dB and a Noise Reduction Rating (NRR) of 25 dB. Full testing details are available in the Noise Attenuation section of this booklet.

ANSI S3.19-1974

American National Standards Institute
The level of noise entering a person’s ear, when ISOtunes® FREE 2.0 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. ISOtunes FREE 2.0 should not be used if a proper fit is not achieved or maintained.

• 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 2.0 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 noise, such as gunfire.

EN 352

European Comm. for Standardization (CEN)
The product has been tested and approved in accordance with personal protective equipment (PPE) standards: EN 352-2:2020, 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.

• B4: Frequency (Hz)
• B5: Mean Attenuation (dB)
• B6: Standard Deviation (dB)
• B7: Assumed Protection Value (APV) (dB
  • 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)
• Please note that the SNR is based on the continuous wear of the product.
• The output of the audio circuit of the hearing protector may exceed the exposure limit level
• Please note, ISOtunes FREE 2.0 provides an entertainment audio facility.
• The audibility of warning signals at a specific workplace may be impaired while using the entertainment facility.

SafeMax™ Technology
ISOtunes® FREE 2.0 incorporates SafeMax™ Technology, therefore its volume output has been limited to 85 decibels (IT-73 & IT-74), or 79 decibels (IT-72). ISOtunes® devices with SafeMax™ Technology are OSHA and ANSI- compliant.

Cleaning and Maintenance

TRILOGY™ foam ear tips should be regularly inspected for deterioration, cracking, or other damage. The ear tips can be cleaned in between uses with a damp cloth and water. Over time, the ear tips should be replaced.

• Clean your ISOtunes FREE 2.0 by gently wiping them with a clean, damp cloth with mild soap.
• Do not immerse the earbuds in water.
• Do not use abrasive cleaning solvents to clean the earbuds.
• If the earbuds get wet from sweat or rain, please discontinue use and allow them to dry.

WARNINGS
ISOtunes® FREE 2.0 does an excellent job of blocking outside noise. As such, ISOtunes® FREE 2.0 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® FREE 2.0 is used ONLY in safe environments.

This product may be adversely affected by certain chemical substances, such as bug spray and sunscreen. Further information may be sought from the manufacturer.

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.

Additional Notes
ISOtunes® FREE 2.0 is compliant with Bluetooth® V5.2. We do not guarantee compatibility of all functions on every Bluetooth®-enabled device. Please check your device’s user manual for compatibility and functionality.

• Weight: 9 g (both earbuds), 32 g (case)
• Date of Obsolescence: 3 years from purchase date. Not to be used in Explosive Atmospheres.
• For additional information or questions about ISOtunes® products or spares and accessories, please contact our support team.

FCC STATEMENT

Caution:
The user is cautioned that changes or modifications not expressly approved by the party responsible for compliance could void the user’s 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 interference 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 communications. 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 equipment 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 the receiver.
• Connect the equipment to 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 operating instructions for satisfying RF exposure compliance. This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.

Hereby, Haven Technologies declares that the IT-72 complies with Regulation (EN)2016/425 and EN 352-2:2020, Directive 2012/19/EU, Directive 2011/65/EU & (EU)2015/863, and Radio Equipment Directive 2014/53/EU.

The full text of the declaration of conformity is available at: ISOtunes.co.uk/manuals.

UK & Europe
uk-eurosupport@isotunesaudio.com

North America
support@isotunesaudio.com 1-844-396-3737 Monday-Friday 9-5 ET

This product has been certified by:
Notifed Body 1974 PZT GmbH Bismarckstr. 264B.

D-26389 Wilhelmshaven, Germany

The monitoring of this product is carried out according to Module C2 by:
Notifed Body 1974 PZT GmbH Bismarckstr. 264B D-26389 Wilhelmshaven, Germany.

Hereby, Haven Technologies declares that the IT-72 complies with Regulation (EU) 2016/425, EN 352-2:2020, EN 352-9:2020, and EN 352-10:2020 on PPE, Directive 2011/65/EU on RoHS-2, Delegated Directive (EU) 2015/863 on RoHS-3, and Directive 2014/53/EU on RED.

References

• ISOtunes Product Manuals | Download User Manuals
• ISOtunes.com/manuals

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