ISOtunes IT-22 XTRA 2.0 Bluetooth Earbuds User Manual

: June 1, 2024
: ISOtunes

Table of Contents

References
Read User Manual Online (PDF format)
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ISOtunes IT-22 XTRA 2.0 Bluetooth Earbuds User Manual

Table (SNR Table)

B1: Frequency (Hz	125	250	500	1000	2000	4000	8000
B2: Mf (dB)	34.5	32.6	39.2	37.7	38.1	42.6	44.6
B3: sf (dB)	6.0	5.1	5.6	5.4	3.5	4.8	4.7
B4: APVf	28.4	27.6	33.6	32.3	34.6	37.8	39.9

Relationship between sound output level and input signal.

SPL [dB(A)]	70	75	80	85	90	95	100	105
Input Signal Level [dBFS	-51.4	44.0	41.4	36.4	-31.4	-26.4	213	15.1

Bluetooth® (HFP)

Criterion Input Signal	-39.4 dBFS
Sound Output Level at Maximum Input Signal	107.2dB(A) at -14 dBFS
Usage Time For Maximum Input Signal	0.02H AT-14 dBFS

Important
Please read, understand, and follow all safety information. This product is designed to protect against harmful noise. IT-25 is the EN 352 Certified Model. IT-22 and IT-27 are not EN 352 Certified.
Fitting
ISOtunes® XTRA EN352 comes with 4 sets of TRILOGY™ foam eartips (XS,S,M,L) and 3 sets ofsilicone eartips (S,M,L). Choose the size that fitsmost snugly in your ear canal. Remember, thesnugger the fit, the better the noise blocking. The silicone eartips are intended for use when NOT in noisy situations.

ISOtunes® TRILOGY™ foam eartips have a threaded core and the sound port on the earbud is also threaded.
Twist the foam eartip counterclockwise to remove and clockwise to place on a new foam eartip.
Carefully compress the foam eartip on the stem/sound port.
Insert the foam/eartip into your ear as deeply as is comfortable and hold for 5 seconds while the foam expands.
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 FIG1.

Introduction
Thank you for purchasing ISOtunes® XTRA 2.0 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 with less interruption. This product has been tested and meets the European Safety Standard EN352-2:2002 and the ANSI & NIOSH standards for a hearing protector, with a Single Number Rating (SNR) of 36 dB and a Noise Reduction Rating (NRR) of 27 dB. Full testing details are available in the Noise Attenuation section of this booklet.
Noise Attenuation
APPROVAL: ISOtunes® XTRA 2.0 is tested and approved in accordance with ANSI S3.19-1974 Specifications and the European Safety Standard

EN 352-2:2002, EN 352-9:2020, EN 352-10:2020.
ANSI S3.19-1974
The level of noise entering a person’s ear, when ISOtunes® XTRA 2.0 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:

The surrounding noise level measured at the ear is 100 dB.
The NRR of ISOtunes® XTRA 2.0 is 27 dB.
The noise level entering the ear is approximately equal to 73dB.

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.

EN352
B1: Frequency (Hz)
B2: Mean Attenuation (dB)
B3: Standard Deviation (dB)
B4: 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)

Hereby the EU declaration of conformity can be accessed at ISOtunes.co.uk/manuals The products will be certified to the Product standard EN 352-2:2002, EN 352-9:2020, EN 352- 10:2020, and the PPE Regulation 2016/425.

SafeMax™ Technology
ISOtunes® XTRA 2.0 incorporates SafeMax™ Technology, therefore its volume output has been limited to 85 decibels (IT-22 and IT-27) and 79 decibels (IT-25). ISOtunes® devices with SafeMax™ Technology are OSHA, NIOSH, and ANSI compliant and, when designated, meet the European Safety Standard EN352.

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.co.uk
Clean your ISOtunes® XTRA EN352 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.

Clean your ISOtunes XTRA 2.0 by gently wiping them with a clean, damp cloth with mild soap.
Do not use abrasive cleaning solvents to clean the hearing protector.

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® XTRA 2.0 does an excellent job of blocking outside noise. As such, ISOtunes® XTRA 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® XTRA 2.0 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 where the risk that the connecting cord could be caught up during use.

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® XTRA 2.0 is compliant with Bluetooth® V5. We do not guarantee 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 spares and accessories, please contact our support team.
Mean Mass: About 21 grams
Date of Obsolescence: 3 years from purchase date
Not to be used in Explosive Atmospheres
The Carry Case provided is the packaging suitable for transport.
The hearing protector provides safety related audio input (phone calls).
The earplugs provide an entertainment audio facility (music).

The earplugs provide audio signal sound pressure level limitation and that the earplugs limit the entertainment audio signal to 82dB(A) effective to the ear.
The audibility of warning signals at a specific workplace may be impaired while listening to music

Included Eartip Sizes	Nominal Diameter
Small	8-11 mm
Medium	8-12 mm
Large	9-14 mm

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.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 anyinterference received, including interference that may cause undesired operation.

ISED
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:

This device may not cause interference.
This device must accept any interference, including interference that may cause undesired operation of the device.

SAR Warning
This equipment has to subject to ISED SAR (Specific Absorption Rate) exposure test, this equipment is designed to meet the requirements for exposure to radio waves established by the ISED.

UK & Europe
uk-eurosupport@isotunesaudio.com
North America
support@isotunesaudio.com 1-844-396-3737 Monday-Friday 9-5 ET