Earmor M31 MOD3 User manual

ELECTRONIC HEARING PROTECTOR
M31
MOD3
USER MANUAL
SENSITIVE FOR LIFE

Protect your hearing, make listening safe
People run a high risk of hearing loss due to exposure to damaging
levels of ambient sounds. Guns are exceptionally loud and a single
gunshot can cause damage to a shooter’s hearing. Construction
workers might impair their hearing because of noisy working
conditions. Therefore, awareness of hearing protection is the key.
We at EARMORTM understand this situation and we are dedicated to
providing the best hearing protection products on the market. Safety
always comes first no matter what short of adventure you go on.

Rock music peak
Firearms, jet engine
Amplified rock music at 4-6 ft. / car stereo
Remote-controlled plane
Chainsaw / pneumatic drill / power drill
Lawnmower
Blender
Conversation
150 dB
140 dB
120 dB
110 dB
100 dB
90 dB
80 dB
70 dB
Use double hearing
protection if worn
in high noise
environments
Low noise /
frequency tuned
for natural sound
clarity

Slides
Microphones
Easy-access battery cap
ON/OFF and volume control
FEATURES

Cushioned sealing rings
Easy-access battery cap
3.5mm Stereo audio input jack
Folding Headband

Installing Batteries
With an amazing bolt-lock battery
cap design, simply twists the cap
30 degree to open/tighten the cap.
Fitting Headset
Fully extend sliders and place cups over ears so that microphones
are facing forward. Then tighten headband using sliders.
INSTRUCTIONS 1
1 2 3
2

Power and volume
Anti-false triggering: Press and hold the
button for 3 seconds to power on/off,
press "+" "-" button to adjust volume.
Audio input
Connect device using 3.5mm stereo
audio cable supplied.
Turn on headset:
· Use headset to control ambient volume.
· Use device to control input volume.

Auto shut-off
After 4 hours of non-activity, the hearing
protector will automatically powers down with 3
times beep. Simply press ON/OFF button again to
turn it back on when necessary.
4 hours
AUTO SHUT-OFF
Variable amplification levels:
Developed to help reduce echoes and
reverberations when shooting in indoor and
outdoor environments, there are 4 levels of
amplification level, indicated by beeps as the
volume is changed: 1st amplifier level is 0DB, 2nd
level is +3DB, 3rd level is +6DB, 4th level is +9DB.
+0+3+6+9

Dynamic voice tracking
Clear voice tracking seeks voice
in background/environmental
noise and reduces the noise to
improve speech intelligibility.
Voice Noise
Increased RF immunity for EMI environments
EMI (Electromagnetic Interference)/RFI (Radio
Frequency Interference) Filter can suppress
interference generated by the device or other
equipment, making the M31 MOD3 more immune to
electromagnetic interference signals presented in
the environment.

Attack Time:
The time of reacting to control high-
energy noise is 0.5ms, referring to the
initial climb in sound energy graph.
Release Time:
It takes 500ms from when the
suppression activates (the transient
peak) to when the audio is turned all
the way back up to the normal level.

IMPORTANT USER INFORMATION
For the best protection, ear cushion sealing ring should seal firmly against
head, Anything that interferes with the seal - such as long hair(pull back to
the extent possible), thick or poorly fitting eyeglass temples, pencils or caps -
will lessen the protection.
Earmuffs must be regularly inspected for cracks or worm parts, it may affect
the acoustic performance of the earmuffs. Typical life for foam cushion
sealing rings is 12 months.
Clean the exterior of the hearing protector regularly with soap and warm
water. Do not immerse the whole headset in water.
Do not store the hearing protector behind a windshield or at temperatures
above 131°F (55°C).
Certain chemical substances may damage this product. Contact the
manufacturer for more information.

CAUTION
To reduce the risks associated with harmful noise or chemicals:
If instructions are not followed, bodily injury may result or protection may be
severely affected.
When interference increases or the sound level becomes too weak, it is time to
change the batteries.
Do not store the batteries installed. A leaking battery may cause bodily injury or
damage to the hearing protector.
These hearing protectors help reduce exposure to hazardous noise and other
loud sounds. Misuse or failure to wear hearing protectors at all times when you
are exposed to noise may result in hearing loss or injury.
If there is any drainage from your ear or if you have an ear infection, consult with
your physician before wearing hearing protection. Failure to do so may result in
hearing loss or injury.
For proper use, see user instructions or contact EARMOR Technical Service via
Email: [e-mail]

APPROVAL
Earmor M31 MOD3 is tested and approved in accordance with ANSI S3.19-1974
Standard at Guangzhou OPSMEN Tech Co., Ltd. China.
Internal level dB(A)
Earmor M31 MOD3 Attenuation data according to American National Standards
Institute Specifications ANSI S3.9-974(in passive mode, electronics switched off)
Audio input level
The audio level in the hearing protector is dependent on the audio input level.
To prevent harmful noise levels, the hearing protector audio level is limited to
82dB(A) when connected to a Personal Music Player. If the hearing protector is
connected to a PMP or other device with a very high output level, it is the user’s
responsibility to set the audio input level to a safe level.
TEST FREQ.(HZ) 125 250 500 1000 2000 3150 4000 6300 8000 NRR
MEAN
ATTENUATION(DB) 17.7 19.1 24.7 29.6 30.1 37.6 40.0 41.7 40.5
22
STANDARD
DEVEATION(DB) 3.1 1.9 2.3 2.3 2.2 3.2 3.4 2.7 3.1

The EARMOR M31 MOD3 electronic hearing protector is warranted
to be free of defects in material and workmanship for a period of 1
year from the date of original purchase. OPSMEN will, at its option,
repair or replace without charge, except for the transportation costs,
parts that fail under normal use and service when operated and
maintained in accordance with our instructions.
The warranty is nullified in all of the following situations:
1. The product(s) is/are broken down, reconstructed and/or
modified by unauthorized parties.
2. The product(s) is/are damaged through improper use.
3. The product(s) is/are damaged by leakage of batteries.
WARRANTY

OPSMEN TECH CO., LTD.
Tel: [phone] Fax: [phone] E-mail: [email protected]
Add: Rm 503A, Bldg.51 at 1850 Creative Park, No. 200 of
Fangcun East Avenue, Guangzhou, Guangdong, China. 510370
CONTACT
For the latest information on OPSMEN/EARMOR
products and services, please contact a local OPSMEN
distributor/dealer or send an email to [e-mail]
The OPSMEN official website WWW.OPSMEN.COM shall
prevail in case of any product data changes.