ISOtunes AirDefender Earmuff Headphone User Manual
- June 5, 2024
- ISOtunes
Table of Contents
ISOtunes AirDefender Earmuff Headphone User Manual
Location of Controls
- Power Button
- Volume Up Button
- Volume Down Button
- Multifunction Button (MFB)
- LED Indicator Light
- Line Input
- Charging Port
Power On/Off
Power On: Press and hold the power button (1) (you will hear “Power On”)
Power Off: Press and hold the power button (1) (you will hear “Power
Off”)
Bluetooth Pairing
Press and hold the Multifunction Button (4) to enable Bluetooth. You will hear “Bluetooth On” and the headphones will automatically enter Pairing Mode.
Bluetooth Reset
Press and hold the Multifunction Button (4) for ten seconds. The Bluetooth LED
(4) will flash quickly eight times if successful.
Music & Volume
Play/Pause: Short Single Press MFB (4)
Next Track: Short Double Press MFB (4)
Previous Track: Short Triple Press MFB (4)
Volume Up: Press + button (2)
Volume Down: Press button (3)
Line Input Option
To listen to music via the line input (6), use the 3.5mm audio cable
included. Insert one end into the ISO tunes AIR DEFENDER and insert the other
end into your phone or other personal media device. Will not work for phone
calls with line input.
Phone Calls
Answer Call: Short Press MFB (4)
End Call: Long Press MFB (4)
Reject Call: Press and hold MFB (4)
Mute/Unmute Microphone: Short Press MFB (4)
Charging
This product is charged with a micro-USB charger and hold up to 10 hours of music and talk time between charges.
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.
Noise Attenuation APPROVAL This product has been tested to the European Safety Standard EN 3521:2020 and the ANSI S3.19-1974 standard for a hearing protector, with a Single Number Rating (SNR) of 30 dB and a Noise Reduction Rating (NRR) of 24 dB. Full testing details are available in the Noise Attenuation section of this booklet.
ANSI S3.19-1974
The level of noise entering a person’s ear, when ISOtunes® AIR DEFENDER
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 ISO tunes® AIR DEFENDER is 24 dB.
- The noise level entering the ear is approximately equal to 76dB.
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)
T
he full text of the declaration of conformity is available at: ISOtunes.co.uk/manuals.
SafeMax™ Technology
ISOtunes® AIR DEFENDER incorporates SafeMax™ Technology, therefore its volume
output has been limited to 85 decibels (IT-46), or 79 decibels (IT-47) .
ISOtunes® devices with SafeMax™ Technology are OSHA, and ANSI compliant.
Cleaning and Maintenance
- Clean your ISOtunes AIR DEFENDER 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
deterioration, cracking, or other damage.
WARNINGS ISOtunes® AIR DEFENDER does an excellent job of blocking outside noise. As such, ISOtunes® AIR DEFENDER 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® AIR DEFENDER is used ONLY in safe environments.
The fitting of hygiene covers to the cushions may affect the acoustic performance of the ear-muffs.
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.
The size range for the earmuff is S M L.
The mean mass of the product is 327.6g. Date of Obsolescence: 3 years from
purchase date.
Not to be used in Explosive Atmospheres.
Additional Notes The hearing protector is equipped with a safety-related
audio input.
The user should familiarize themselves with its operation prior to use.
The user should verify proper operation prior to use. If distortion or failure
is detected, the user should follow the manufacturer’s recommendations for
maintenance and battery replacement.
Warning: the output level of the audio circuit of this hearing protector may
exceed the exposure limit.
Charge the built in lithium ion battery with the included charging cable.
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.
Battery level can be checked via the bluetooth batter meter on a smartphone.
ISOtunes® AIR DEFENDER 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.
Materials:
- Ear Cushion: PU + Memory Foam
- Casing: ABS
- Key Pad: Silicone
- Headband: Stainless Steel and PU
- Headband Bracket: ABS
For additional information or questions about ISOtunes® products or spares and accessories, please contact our support team.
Please note, the hearing protector provides an entertainment audio facility. The earmuff provides audio signal sound pressure level limitation which limits the entertainment audio signal to 85 dB(A) [82 dB(A) for IT-47] for 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 an analog line input on this product.
For additional information about ISOtunes® AIR DEFENDER, please visit ISOtunes.com/manuals. 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-86
Replace ear-cushions.
- Put your finger between the ear cushions and the earcup rim.
- Pull the Foam Ear cushion away from the earcup rim.
- Insert the new ear-cushion in place on the earcup rim.
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.
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-47 complies with Regulation (EU)2016/425 and EN 352-1:2020, EN 352-6:2020, EN 3528:2020, Directive 2012/19/EU, Directive 2011/65/EU & (EU)2015/863, Radio Equipment Directive 2014/53/EU
North America support@isotunesaudio.com 1-844-396-3737 Monday-Friday 9-5 ET
UK & Europe
uk-eurosupport@isotunesaudio.com
EU Importeur Haven Technologies UK LTD Winterhuder Weg 29 22075 Hamburg
Germany
References
- ISOtunes Product Manuals | Download User Manuals – ISOtunes®
- Product Manuals
- ISOtunes.com/manuals
- ISOtunes Product Manuals | Download User Manuals
- ISOtunes Product Manuals | Download User Manuals – ISOtunes®
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