ISOtunes IT-22 XTRA 2.0 Bluetooth Earbuds User Manual
- June 1, 2024
- ISOtunes
Table of Contents
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
References
- ISOtunes® | Bluetooth Hearing Protection | Wireless Ear Defenders
- ISOtunes® | Bluetooth Hearing Protection | Wireless Ear Defenders
- ISOtunes.com
- ISOtunes® | Bluetooth Hearing Protection | Wireless Ear Defenders