EN | 12
APPROVAL: ISOtunes® LITE is tested and approved in accordance
with ANSI S3.19-1974 Specifications and tested to the European
Safety Standard EN 352-2:2002�
ANSI
S3.19-1974
The level of noise entering a person’s ear, when ISOtunes® LITE
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:
1� The surrounding noise level measured at the ear is 100 dB�
2� The NRR of ISOtunes® LITE is 26 dB�
3� The noise level entering the ear is approximately equal to 74dB�
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)
The EU declaration of conformity for IT-19 can be accessed at www.
isotunes.co.uk/EU-declaration-of-conformity
The products will be certified to the Product standard EN 352-2:2002
and the PPE Regulation 2016/425
SafeMax™ Technology
ISOtunes® LITE incorporates SafeMax™ Technology, meaning its
output volume is limited to 85 decibels (IT-20) or 79 decibels (IT-
19)� ISOtunes® devices with SafeMax™ Technology are OSHA and
ANSI compliant and, when designated, meet the European Safety
Standard EN 352�
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.com or ww.ISOtunes.co.uk
Clean your ISOtunes® LITE 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�
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® LITE does an excellent job of blocking outside noise� As
such, ISOtunes® LITE 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
