ISOtunes DEFY SLIM Ultra-comfortable Electronic Earmuff User Manual

ISOtunes DEFY SLIM Ultra-comfortable Electronic Earmuff

Location of Controls

1. Power/Tactical Sound Control™ Dial
2. Music Volume Dial
3. Multifunction Button (MFB)
4. LED Indicator Light
5. Tactical Sound Control™ Mic
6. Battery Door Cover
7. Line Input

LED Light Indicator

Power On/Off

• Power On: Turn the Power/Tactical Sound Control™ Dial (1) up (you will hear and feel a physical click)
• Power Off: Turn the Power/Tactical Sound Control™ Dial (1) all the way down (you will hear and feel a physical click)

Bluetooth Pairing

Press and hold the Multifunction Button (3) to enable Bluetooth. You will hear “Bluetooth On” and the headphones will automatically enter Pairing Mode.

1. Open the Bluetooth settings on your device.
2. Search for “ISOtunes DEFY Slim.” Pair and connect. You will hear “Bluetooth Connected” once connected.

Bluetooth Reset

Press and hold the Multifunction Button (3) for ten seconds. The Bluetooth LED (4) will flash quickly eight times if successful.

Tactical Sound Control™ Technology

This product includes TSC (Tactical Sound Control™) Technology. This is a microphone technology that allows the user to hear the world around them, but always at a safe listening level. When ambient noise breaches a safe listening level, the microphone technology immediately responds and attenuates to a safe level.
Adjusting the TSC volume is easy. Turn the Power/Tactical Sound Control™ Dial (1) up or down

Music & Volume

Play/Pause: Short Single Press MFB (3) Next Track: Short Double Press MFB (3) Volume: Turn the Volume Dial up or down (2)

Line Input Option
To listen to music via the Line Input (7), use the 3.5mm audio cable included. After connecting to Bluetooth, insert one end into the DEFY Slim 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 (3)
• End Call: Long Press MFB (3)
• Reject Call: Press and hold MFB (3)
• Mute/Unmute Microphone: Short Press MFB (3)

Battery

The DEFY Slim operates using two standard AAA batteries. Slide the black ISOtunes Sport cover up to open and access the batteries. If you experience any issues, try removing the batteries and inserting new ones.

LEGALITIES

Fitting

Models
IT-43

Important
Please read, understand, and follow all safety information.

Fitting

1. Pull the earcups apart (Fig. 1)
2. Check for R and L indicators (Fig. 2)
3. Place the product on your head with the corresponding R and L sides (Fig. 3)
4. Adjust the earcup position by extending the headband to ensure a good fit around the ears

• Introduction
  Thank you for purchasing ISOtunes® Sport DEFY Slim 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.

• Powering On/Off
  To power on, turn the Power/Tactical Sound Control™ Dial up (you will hear and feel a physical click). To power off, turn the Power/Tactical Sound Control Dial all the way down (you will hear and feel a physical click).

• Pairing to your Device
  After powering on, press and hold the Multifunction Button to enable Bluetooth – you will hear “Bluetooth On” and the headphones will automatically enter Pairing Mode. Look for quick blue flashes on the LED Indicator Light ato indicate pairing mode. Open the Bluetooth settings on your device. Search for “ISOtunes DEFY Slim”. Pair and connect. You will hear “Bluetooth Connected” once connected.

• Charging
  The DEFY Slim operates using two standard AAA batteries (included). If you experience any issues, try removing the batteries and inserting new ones.

• Noise Attenuation
  This product has been tested to the European Safety Standard EN352-1:2002 and the ANSI S3.19-1974 standard for a hearing protector, with a Single Number Rating (SNR) of 27 dB and a Noise Reduction Rating (NRR) of 21 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® Sport DEFY Slim 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® Sport DEFY Slim is 21 dB.
  • The noise level entering the ear is approximately equal to 79 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
  • 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)

• SafeMax™ Technology
  ISOtunes® Sport DEFY Slim incorporates SafeMax™ Technology, therefore its volume output has been limited to 85 decibels. ISOtunes® Sport devices with SafeMax™ Technology are OSHA, and ANSI compliant.

• Tactical Sound Control™ Technology
  This product includes TSC – Tactical Sound Control Technology™. This is a microphone technology that allows the user to hear the world around them, but always at a safe listening level. When ambient noise breaches a safe listening level, the microphone technology immediately responds and attenuates to a safe level. This feature automatically turns on when the product turns on. Adjusting the TSC volume is easy: simply turn the large dial up or down.

• Cleaning and Maintenance

  • Clean your ISOtunes Sport DEFY Slim 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® Sport DEFY Slim does an excellent job of blocking outside noise. As such, ISOtunes® Sport DEFY Slim 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® Sport DEFY Slim is used ONLY in safe environments.

• Additional Notes
  ISOtunes® Sport DEFY Slim 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® Sport products or spares and accessories, please contact our support team.

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

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

UK & Europe
uk-eurosupport@isotunesaudio.com

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