ISOtunes Lite Bluetooth Earplugs for Hearing Protection User Manual

The Next Generation of Hearing Protection

Location of Controls

1. Volume Up
2. Multi-Function Button (MFB)
3. Volume Down
4. LED Indicator Light
5. Bluetooth Mic
6. Charging Port

LED Light Indicator

Product| Operation| LED Indicator Light| Voice Prompt Tone| Flashing Pattern
---|---|---|---|---
ISOtunes LITE| Charging| | —–| Solid
| Charged| | —–| Solid
Power OFF| | “Power Off”| Flash
Power ON| | “Power On”| Flash
Pairing| | “Bluetooth Pairing Mode”| Alternate
Dual Connect Mode| | “Bluetooth Pairing Mode”| Alternate
ISOtunes LITE EN 352| Charging| | —–| Solid
| Charged| | —–| Solid
Power OFF| | “Power Off”| Flash
Power ON| | “Power On”| Flash
Pairing| | “Bluetooth Pairing Mode”| Alternate
Dual Connect Mode| | “Bluetooth Pairing Mode”| Alternate

Charging

The earplugs are charged with a micro-USB charger and hold up to 10 hours of music and talk time between charges.

1. Please charge with the included micro-USB cable by plugging it into the Charging Port **(6)**
   *Charging voltage should not exceed 5v.

2. While the cable is plugged into the Charging Port **(6)**, the LED Indicator Light **(4)** will let you know if the battery is charging or f ully charged.

LED Indicator Light **(4)**

ISOtunes LITE

| Solid Red = Charging (Cable Plugged In)
---|---
| Solid Blue = Fully Charged (Cable Plugged In)

ISOtunes LITE EN 352

| Solid Red = Charging (Cable Plugged In)
---|---
| Solid Orange = Fully Charged (Cable Plugged In)

Please refer to the LED Indictor Light page for more information.

Power On/Off

Power On: Press and hold MFB **(2)** for 3 seconds. (you will hear “Power On”)
Power Off: Press and hold MFB **(2)** for 3 seconds. (you will hear “Power Off”)

LED Indicator Light(4)

ISOtunes LITE

| Blue Flash = Power ON
---|---
| Red Flash = Power OFF

ISOtunes LITE EN 352

| Orange Flash = Power ON
---|---
| Red Flash = Power OFF

Bluetooth Pairing

After powering on, the headphones will automatically enter Pairing Mode. You will hear “Bluetooth Pairing Mode” and the LED Indicator Light **(4)** will flash, alternating Blue and Red.

1. Open your Bluetooth settings on your device.

2. Search “ISOtunes LITE.” 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 (2)(2) 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 LITE.
5. Both devices are now connected.

Pairing Reset
If you have issues connecting to any device, we recommend a Pairing Reset:

1. The headphones need to be powered on.
2. Press and Hold the Volume Up(1) and the Volume Down (3) for 4 seconds.
3. Continue holding, listen for a double tone and then release.

LED Indicator Light (4)

| Alternating Blue & Red = Pairing Mode
---|---
| Alternating Orange & Red = Pairing Mode

Music

Play/Pause: Short single press MFB **(2)**
Next Track: Double press MFB **(2)**
Previous Track: Triple press MFB **(2)**
Music Volume Up: Short single press Volume Up **(1)**
Music Volume Down: Short single press Volume Down **(3)**

Phone Calls

Answer/End   Call: Short single press MFB **(2)**
Reject Call: Press and hold MFB **(2)** for 1 second

Siri / Google Assistant
Press and hold MFB(2) for 1 second.

Legalities
Fitting

ANSI S3.19-1974 Table (NRR Table)

AI Frequency, Hz| 125| 250| 500| 1000| 2000| 3150| 4000| 6300| 8000| NRR
---|---|---|---|---|---|---|---|---|---|---
A2 Grand Mean Attenuation (dB)| 29.6| 29.1| 36.5| 38.3| 39.5| 44.8| 45.6| 48.2| 45.5| 0
A3 Standard Deviation (dB)| 4.0| 2.9| 3.5| 3.0| 2.8| 4.6| 4.5| 5.1| 5.6|

EN352-2:2002 Table (SNR Table)

B1:Frequency, Hz| 125| 250| 500| 1000| 2000| 4000| 8000
---|---|---|---|---|---|---|---
B2:Mf (dB)| 30.1| 28.8| 35.5| 39.0| 39.3| 43.1| 46.7
83: sf (dB)| 2.7| 3.7| 4.3| 3.9| 3.7| 3.6| 3.8
B4: APVf| 27.4| 25.1| 31.2| 35.1| 35.6| 39.5| 42.9

B5: SNR: 36 dB H= 37 dB M= 34 dB L= 29 dB APVf=MF-SF9 (dB)

Models
IT-19 LITE EN 352
IT-20 LITE

Important
Please read, understand, and follow all safety information. This product is designed to protect against harmful noise.
Please note, only IT-19 is EN 352 Certified.

Fitting
ISOtunes® LITE comes with a pair of One-Size-Fits-All TRILOGY™ Universal foam eartips and 3 sets of silicone eartips (S,M,L). Choose the size that fits the most snug in your ear canal. Remember, the snugger the fit, the better the noise reduction. The silicone eartips
are intended for use when NOT in noisy situations.
ISOtunes® TRILOGY™ foam eartips have a threaded core, and the sound port of the earbud is also threaded.

1. Twist the foam eartip counterclockwise to remove and clockwise to place on a new foam eartip.
2. Carefully compress the foam eartip on the stem/sound port.
3. Insert the foam/eartip into your ear as deeply as is comfortable and hold for 5 seconds while the foam expands.
4. Repeat with second eartip.

Hint: To open your ear canal wider, lift the top of your ear up and away from your head, as shown in FIG 1

Please Note: should the included Universal sized eartips not fit your ears, all ISOtunes® TRILOGY™ eartips fit this product. Eartips other than the TRILOGY™ Universal size are not NRR/SNR rated for ISOtunes LITE but should offer reasonable attenuation and performance.

Introduction
Thank you for purchasing ISOtunes® LITE Professional Noise Isolating headphones. These headphones 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 without interruptions. This product has been tested and meets the European Safety Standard EN352-2:2002 and the ANSI standards for a hearing protector, with a Single Number Rating (SNR) of 36 dB and a Noise Reduction Rating (NRR) of 26 dB. Full testing details are available in the Noise Attenuation section of this booklet

Noise Attenuation
APPROVAL: ISOtunes® LITE is tested and approved in accordance with ANSI S3.19-1974 Specifications and tested to the European Safety Standard EN 352-2:2002.

ANSI
S3.19-1974
The level of noise entering a person’s ear, when ISOtunes® LITE 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® LITE is 26 dB.
3. The noise level entering the ear is approximately equal to 74dB.

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
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)
The EU declaration of conformity for IT-19 can be accessed at www.isotunes.co.uk/EU-declaration-of-conformity
The products will be certified to the Product standard EN 352-2:2002 and the PPE Regulation 2016/425

SafeMax™ Technology
ISOtunes® LITE incorporates SafeMax™ Technology, meaning its output volume is limited to 85 decibels (IT-20) or 79 decibels (IT19). ISOtunes® devices with SafeMax™ Technology are OSHA and ANSI compliant and, when designated, meet the European Safety Standard EN 352.

Cleaning and Maintenance
Trilogy foam eartips are disposable.  To ensure peak performance, we recommend replacing TRILOGY™ Foam Tips every three months or when they become soiled. In order to purchase additional tips, please go to www.ISOtunes.com or ww.ISOtunes.co.uk
Clean your ISOtunes® LITE by gently wiping them with a clean damp cloth. Mild soap can be applied to the cloth.
Do not use abrasive cleaning solvents to clean the headset. Avoid scratching the headset with sharp objects, as this may cause damage. Keep the headset away from high temperature areas.
The TRILOGY™ foam eartips should be regularly inspected for deterioration, cracking, or other damage. The eartips can be cleaned in between uses with a damp cloth and water. Overtime, the eartips should be replaced.

WARNINGS
ISOtunes® LITE does an excellent job of blocking outside noise. As such, ISOtunes® LITE 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® LITE is used ONLY in safe environments. This product may be adversely affected by certain chemical substances. Further information may be sought from the manufacturer.
These earplugs should not be used in situations where there is a risk that the connecting cord could be caught up during use.

Recommendations
The wearer should ensure that 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 maybe severely impaired.

Additional Notes
ISOtunes® LITE is compliant with Bluetooth® V5. We do not guarantee the compatibility of all functions on every Bluetooth®- enabled device. Please check your device’s user manual for compatibility and functionality.
For additional information or questions about ISOtunes® products or spare parts and accessories, please contact our support team.
Mean Mass: approximately 16 grams
Date of Obsolescence: 3 years from purchase date
Not to be used in Explosive Atmospheres

FCC
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:

1. This device may not cause harmful interference, and
2. This device must accept any interference received, including interference that may cause undesired operation.

Warning: 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 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.

RF warning statement: The device has been evaluated to meet general RF exposure requirements. The device can be used in portable exposure conditions without restriction.

UK & Europe
uk-eurosupport@isotunesaudio.com

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

Read User Manual Online (PDF format)

Read User Manual Online (PDF format)  >>

Download This Manual (PDF format)

Download this manual  >>