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 Proles:
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
• Certications: 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 Certied

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.

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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

11
OPERATING INSTRUCTIONS
POWER ON/OFF
ON: Press and hold the Multi-Function Button
4
for 1.5
seconds. “Power ON” voice prompt will be heard and the LED
will turn solid green for one second, then turn off.
OFF: Press and hold the Multi-Function Button
4
for 3 seconds.
“Power OFF” voice prompt will be heard and the Indicator LED
3
will turn solid red for one second, then turn off.
BLUETOOTH®PAIRING
After successfully powering on, the earmuffs will automatically
enter Bluetooth®pairing mode. “Pairing” voice prompt will be
heard and the Indicator LED
3
will breathe (dim to bright) blue
every three seconds.
1.Ensure Bluetooth is enabled on your device and it has
discovered “Klein Muffs” in the pairing list.
2.Select “Klein Muffs” and upon successful connection,
“Connected” voice prompt will be heard and the Indicator LED
3
will turn solid blue for three seconds, then turn off.
3.In the event pairing fails, power the muffs off then on.
NOTE: The earmuffs will automatically attempt to re-connect
to the last known paired wireless device when turned on, but
are ready to pair with any Bluetooth compliant device within
ten minutes of powering on if the last paired device is not
detected.

12
OPERATING INSTRUCTIONS
AUX INPUT
If a wireless connection is not available, a wired connection
can be by using the included 1/8" (3.5mm) AUX cable
10
. Open
the Silicone Port Cover
6
to access the the AUX Input
8
. All
controls will switch over to the connected device.
NOTE: AUX connection takes priority over wireless connection.
AUTO POWER-OFF
After ten minutes of unsuccessful pairing, pairing mode will
be exited and the earmuff will automatically power off. The
Indicator LED
3
will flash red once.
MUSIC OPERATION
Play/Pause: Single-press the Multi-Function Button
4
.
Next Track: Double-press the Multi-Function Button
4
.
Previous Track: Triple-press the Multi-Function Button
4
.
Volume Up: Single-press the Volume Up Button
2
.
Volume Down: Single-press the Volume Down Button
1
.
ENGLISH
1. Volume Down Button
2. Volume Up Button
3. Indicator LED
4. Multi-Function Button
(MFB)
5. Bluetooth®
Microphone
6. Silicone Port Cover
7. USB-C
Charging Port
8. 1/8" (3.5mm)
AUX Input
9. USB-A to USB-C
Charging Cable

13
OPERATING INSTRUCTIONS
PHONE CALL OPERATION
Answer/End Calls: Single press the Multi-Function Button
4
.
Reject Call: Press and hold the Multi-Function Button
4
for
one second.
Hold Current Caller and Answer New Incoming Call: Double-
press the Multi-Function Button
4
.
End Current Call and Other Call on Hold: Press and hold the
Multi-Function Button
4
for one second to end new call, then
single-press to end initial call.
Switch Between Two Active Calls: Double-press the Multi-
Function Button
4
.
OTHER OPERATIONS
Voice Assistant: Press and hold Multi-Function Button
4
for
one second. To exit, press Multi-Function Button
4
once.
Pairing List Reset: Press and hold Multi-function Button
4
for ten seconds while in the ON state. The Indicator LED
3
will
flash red once, then green, then blue.

14
CLEANING
The earmuff shell and cushion can be gently wiped clean with
lukewarm mild soapy water and dried with a soft cloth without
rubbing. Do not submerge earmuffs in water or treat with
abrasive cleaners or solvents.
STORAGE
If earmuffs are to be left unused for an extended period of time,
charge before storing and recharge periodically during storage to
maintain battery’s capacity/life.
MAINTENANCE
Regularly inspect earmuffs and ear cushions for excessive wear
such as tears and/or visible cracks. Replace earmuffs if tears and/
or cracks are visible on the shell and/or cushion. Replace earmuffs
if there is a noticeable change in the fit and no longer sealing firmly
against your head.
ENGLISH

15
COMPLIANCE
FCC COMPLIANCE
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.
NOTE: Changes or modifications not expressly approved by the
party responsible for compliance could void the user’s authority
to operate the equipment.
This equipment has been tested and found to comply with the limits
for a Class B digital device, pursuant to part 15 of the FCC Rules.
These limits are designed to provide reasonable protection against
harmful interference in a residential installation. This equipment
generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with the instructions, may
cause harmful interference to radio communications. However,
there is no guarantee that interference will not occur in a particular
installation. If this equipment does cause harmful interference to
radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the
interference by one or more of the following measures:

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ENGLISH
COMPLIANCE
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from
that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for
help.
FCC RF EXPOSURE STATEMENTS:
This equipment complies with FCC radiation exposure limits
set forth for an uncontrolled environment and meets the FCC
RF Exposure Guidelines. This device can be used in portable
exposure condition without restriction.
This device must not be co‐located or operated in conjunction
with any other antenna or transmitter.

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COMPLIANCE
IC COMPLIANCE
This device contains license-exempt transmitter(s)/receiver(s)
that comply with Innovation, Science and Economic Development
Canada’s license-exempt RSS(s). 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 of the device.
This device complies with RSS-247 of Industry Canada. Operation
is subject to the condition that this device does not cause harmful
interference. This Class B digital apparatus complies with Canadian
ICES-003.
IC RADIATION EXPOSURE STATEMENT:
The equipment complies with SAR limits set forth for an
uncontrolled environment and meets the RSS-102 of the IC
RF Exposure Rules. This transmitter must not be co-located or
operating in conjunction with any other antenna or transmitter.

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WARRANTY
www.kleintools.com/warranty
DISPOSAL /RECYCLE
Do not place equipment and its accessories in the trash.
Items must be properly disposed of in accordance with local
regulations. Please see www.epa.gov/recycle for additional
information.
CUSTOMER SERVICE
KLEIN TOOLS, INC.
450 Bond Street Lincolnshire, IL 60069 1-800-553-4676
[email protected] www.kleintools.com
ENGLISH

ESPAÑOL
AESEM1
Orejeras
Bluetooth
®
MANUAL DE INSTRUCCIONES
• PROTECCIÓN AUDITIVA PASIVA
(HASTA 20NRR)
• Conectividad BLUETOOTH®5.3
Y LLAMADAS EN MODO
MANOSLIBRES
• LA BATERÍA RECARGABLE
DE IONES DE LITIO OFRECE
MÁS DE 70 HORAS DE
FUNCIONAMIENTO
• BANDA PARA LA CABEZA CON
VENTILACIÓN PARA BRINDAR
COMODIDAD Y FRESCURA
• MICRÓFONO CON CANCELACIÓN
DEL RUIDO AMBIENTAL
• BOTONES EXTRAGRANDES CON
SUPERFICIES LEVANTADAS PARA
UNA FÁCIL IDENTIFICACIÓN

20
La marca denominativa Bluetooth
®
y los logotipos son marcas registradas de Bluetooth SIG, Inc.
y cualquier uso de esas marcas por Klein Tools, Inc. se hará bajo licencia.
ESPAÑOL
ESPECIFICACIONES GENERALES
Las orejeras Bluetooth
®
de Klein Tools protegen la audición del usuario
con seguridad hasta 20dBNRR, a la vez que brindan una experiencia
inmersiva de audio mediante tecnología Bluetooth
®
. El diseño ergonómico
de las orejeras se ajusta de manera cómoda en la cabeza, y la batería
duradera permite un uso durante todo el día.
• Protección auditiva: 20dB NRR (Nivel de protección de ruido)
• Versión de Bluetooth®: 5.3
• Alcance de la conexión Bluetooth®:32,8' (10m) al aire libre
• Respuesta de frecuencia: 20Hz – 20kHz
• Compatible con perles:
A2DP v1.3/AVRCP v1.6/HFP v1.7/HSP v1.2/SPP v1.2/HID v1.0
• Tipo de batería: interna de iones de litio de 3,7V/800mAh (2,96Wh)
• Tiempo de funcionamiento: aprox. 70horas a un volumen del 70%
• Requisitos de carga: máximo 5V de CD, mínimo 1A
• Tiempo de carga: aprox. 3horas
• Dimensiones: 7,72"×6,85"×3,90"(196×174×99mm)
• Peso: 14,07oz (399g)
Especificaciones sujetas a cambios.