ISOtunes IT-43 Defy Slim Instruction Manual
- June 1, 2024
- ISOtunes
Table of Contents
ISOtunes IT-43 Defy Slim
ANSI S3.19-1974 Table (NRR Table)
EN352-2:2002 Table (SNR Table)
- B5: SNR=27dB H=29dB M=24dB L=19dB APVf=MF-SF (dB)
Full manual can be found at ISOtunesSport.com/DEFYSlimManual
Important
Please read, understand, and follow all safety information.
Fitting
- Pull the earcups apart (Fig. 1)
- Check for R and L indicators (Fig. 1)
- Place the product on your head with the corresponding R and L sides (Fig. 2)
- Adjust the earcup position by extending the headband to ensure a good fit around the ears (Fig. 2)
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.
Controls
- Power / Tactical Sound Control Dial
- Volume Dial
- Multifunction Button (MFB)
- LED Indicator Light
- Tactical Sound Control Mic
- Battery Cover Door
- Audio Input
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 to
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 S 3 .19 -19 74
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 turn the earmuff outwards, and allow it 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 user’s 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
- [email protected]
- 1-844-396-3737
- Monday-Friday 9-5 ET
UK & Europe
[email protected] Hereby, Haven Technologies Inc. declares that
the device IT-43 DEFY Slim complies with the Regulation (EU) 2016/425 (PPE),
Directive 2011/65/EU (RoHS) and Directive 2014/53/EU (RED). The full text of
the EU Declaration of Conformity is available at the following internet
address: isotunes.eu/documents.