Klein Tools AESEM1 User manual
Bluetooth
®
Earmuffs
INSTRUCTION MANUAL
ENGLISH
• PASSIVE HEARING PROTECTION
(UP TO 20 NRR)
• BLUETOOTH®5.3 CONNECTIVITY
AND HANDS-FREE CALLING
• RECHARGEABLE LI-ION BATTERY
OFFERS 70+ HOURS OF RUNTIME
• VENTED HEADBAND FOR COOL
COMFORT
• ENVIRONMENTAL NOISE-
CANCELLING MICROPHONE
• OVERSIZED BUTTONS WITH
RAISED SURFACES FOR EASY
IDENTIFICATION
AESEM1
2
GENERAL SPECIFICATIONS
Klein Tools Bluetooth
®
Earmuffs confidently protect a user’s hearing
up to 20dB NRR while providing an immersive audio experience via
Bluetooth technology. Ergonomic earmuff design comfortably rests
on the head and long-lasting battery allows for all-day use.
• Hearing Protection: 20dB NRR (Noise Reduction Rating)
• Bluetooth®Version: 5.3
• Bluetooth®Connection Range: 32.8 ft. (10 m) in open space
• Frequency Response: 20Hz - 20kHz
• Support Proles:
A2DP v1.3/AVRCP v1.6/HFP v1.7/HSP v1.2/SPP v1.2/HID v1.0
• Battery Type: Internal, Li-Ion, 3.7V / 800mAh (2.96Wh)
• Runtime: Approx. 70 hours @ 70% Volume
• Charging Requirements: Maximum 5V DC, Minimum 1A
• Charging Time: Approx. 3 hours
• Dimensions: 7.72" × 6.85" × 3.90" (196 × 174 × 99 mm)
• Weight: 14.07 oz. (399 g)
Specifications subject to change.
ENGLISH
The Bluetooth®word mark and logos are registered trademarks owned by
Bluetooth SIG, Inc. and any use of such marks by Klein Tools, Inc. is under license.
3
GENERAL SPECIFICATIONS
• Operating Temperature: -4° to 140F (-20° to 60°C)
• Charging Temperature: 32° to 113°F (0° to 45°C)
• Storage Temperature: 14° to 131°F (-10° to 55°C)
• Relative Humidity: <90% non-condensing
• Drop Protection: 6.6' (2 m)
• Ingress Protection (IP) Rating: IP54
• Certications: FCC, IC, DOE/CEC, NrCan, BQB
• FCC ID: 2AI28-AESEM1
• IC: 21655-AESEM1
WARNINGS
Read, understand, and follow these instructions to ensure safe
operation. Keep these instructions for future reference.
These hearing protectors help reduce exposure to hazardous noise and
other loud sounds. Misuse or failure to wear hearing protection at all times
that you are exposed to noise may result in hearing loss or injury.
• Inspect earmuffs before each use; damage to the earmuffs can reduce
noise reduction performance.
4
WARNINGS
• Improper fit of this device will reduce its effectiveness in attenuating
noise. Consult the FITTING EARMUFFS section for best protection.
• Do not bend or reshape the headband as this will cause a reduced
clamping force reducing the specified NRR (Noise Reduction Rating).
• Prolonged exposure to high volumes can cause hearing damage.
It is the responsibility of the user to set the audio input level to the
recommended volume. See table in FEATURE DETAILS section for noise
exposure levels.
• DO NOT use this product in situations that require special attention:
using noise reduction equipment and listening to audio can reduce
awareness of the surrounding environment.
Failure to observe these warnings can result in risk of re or
electric shock.
• DO NOT use the product if it is damaged or modified. Damaged or
modified batteries may exhibit unpredictable behavior resulting in fire,
explosion, or injury.
• Risk of fire and burns. DO NOT open, crush, heat above specified
maximum temperature or incinerate. Prolonged exposure to direct
sunlight can result in elevated temperatures.
• DO NOT immerse in water or other liquids.
ENGLISH
5
WARNINGS
• Properly seal the charging port cover to achieve specified water &
foreign object ingress protection. Keep seal free of dirt, oil, sand, or
other material that interferes with proper sealing. Failure to do so can
result in risk of fire or electric shock.
• DO NOT open the charging port cover if wet or in a wet environment.
Thoroughly dry the unit and the seal around water-resistant cover
completely before opening water resistant cover.
• DO NOT subject to impacts or drops greater than 6.6ft. (2m).
Drops larger than this may not show signs of damage, but internal
components may have been compromised. It is advisable to replace the
unit if any such severe events occur.
• DO NOT attempt to repair the product or charging cable. There are no
user-serviceable parts.
SYMBOLS ON PRODUCT
Warning or Caution
Risk of Electrical Shock
Read Instructions
FCC: Conforms with particular
Code of Federal Regulations
Bluetooth
®
SIG Certied
6
NOISE REDUCTION RATING (NRR)
The NRR for the AESEM1 Bluetooth Earmuffs is 20dB. It is tested and
in accordance with ANSI S3.19-1974. To ensure adequate hearing
protection, the earmuffs must be properly fitted according to the
FITTING EARMUFFS section.
ANSI S3.19-1974 TESTING
Frequency
(Hz) 125 250 500 1000 2000 3150 4000 6300 8000 NRR
Mean
Attenuation
16.7 22.9 20.8 24.6 36.1 39.6 42.8 38.2 37.3
20
Standard
Deviation
3.5 2.1 2.0 3.1 3.1 3.3 3.2 2.9 2.9
NOTE: The above table is based on a headband force of 13N.
The level of noise entering a person’s ear when the hearing
protector is worn as directed, is closely approximated by the
difference between the A-Weighted environmental noise level and
the Noise Reduction Rating (NRR).
EXAMPLE:
• The environmental noise level as measured at the ear is 89dB(A).
• The NRR is 20dB.
• The level of noise entering the ear is approximately equal to
69dB(A).
ENGLISH
7
NOISE REDUCTION RATING (NRR)
CAUTION: For noisy environments dominated by frequencies
below 500 Hz, the C-weighted environmental noise level should be
used.
NOTE: Although hearing protectors can be recommended for protection
against the harmful effects of impulsive noise, the Noise Reduction
Rating (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. The Environmental Protection Agency
uses the Noise Reduction Rating (NRR) as a rating of a hearing
protector’s noise-reducing performance. Klein Tools cannot guarantee
the suitability of the NRR as a method of rating protection as protection
relies on the level and exposure of sound and how well a product fits.
AUDIO INPUT LEVEL
The audio level in the hearing protector is dependent on the audio
input level. To prevent harmful noise levels, the AESEM1 Bluetooth
Earmuffs automatically default to 85dB when wirelessly connected
to a music device. If the hearing protector is either wirelessly
connected or wired to a music device with a high audio output
level, it is the user’s responsibility to set the audio input level to
safe level.
See table in FEATURE DETAILS section for noise exposure
levels.
8
10
1
3
8
2
5
4
7
6
9
FEATURE DETAILS
ENGLISH
1.Volume Down Button
2.Volume Up Button
3.Indicator LED
4.Multi-Function Button
5.
Bluetooth®Microphone
6.Silicone Port Cover
7.USB-C Charging Port
8.
1/8" (3.5mm) AUX Input
9.2'(61 cm) long USB-A to
USB-C Charging Cable
10.
1/8" (3.5 mm) AUX Cable,
3.6' (110 cm) long
NOISE EXPOSURE VALUES
EXPOSURE
TIME
EXPOSURE LEVEL PER NIOSH
RECOMMENDED EXPOSURE LIMIT EXPOSURE LEVEL PER OSHA
PERMISSIBLE EXPOSURE LIMIT
8 hours
85 dBA 90 dBA
4 hours
88 dBA 95 dBA
2 hours
91 dBA 100 dBA
1 hour
94 dBA 105 dBA
30 minutes
97 dBA 110 dBA
15 minutes
100 dBA 115 dBA
See www.cdc.gov/niosh/topics/noise/reducenoiseexposure
for more details.
9
OPERATING INSTRUCTIONS
CHARGING EARMUFFS
Klein Tools' AESEM1 features a non-replaceable rechargeable
lithium-ion battery pack.
1.Open the Silicone Port Cover
6
to access the USB-C Charging
Port
7
.
2.Using the included USB-A to USB-C charging cable
9
, plug the
USB-C end into the USB-C Charging Port
7
of the earmuffs
while plugging the USB-A end into an appropriate charging
source, such as a third party certified USB to AC wall adapter
(not included, see GENERAL SPECIFICATIONS for charging
requirements).
3.While the earmuffs are charging (0-99%), the Indicator LED
3
will breathe (dim to bright) red, and will illuminate solid green
when fully (100%) charged.
FITTING EARMUFFS
1.Fold out the earcups from the storage position by extending the
slider arms (FIG. 1).
2.Place earmuffs on the head positioning the earcups over
each ear (FIG. 2). The inner headband is labeled (R or L) for
convenience.
10
3. When placing the earcups over the ears be sure to:
• Completely cover the ear, the ears should never be exposed
(FIG. 3).
• Avoid obstructions (such as hair) that would prevent a firm seal
(FIG. 4).
4. Adjust the slider arms up or down to tighten or loosen the headband
until a hugging seal and comfortable fit is achieved (FIG. 5).
OPERATING INSTRUCTIONS
ENGLISH
FIG. 1 FIG. 2 FIG. 3
FIG. 4 FIG. 5
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