Instructions / Assembly

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ENGLISH

Klein Tools Bluetooth

Jobsite Earbuds provide combined hearing protection and wireless

connectivity to Bluetooth

enabled devices. These true stereo wireless earbuds deliver

all-day battery life, a high fidelity audio experience, and provide up to 28dB NRR hearing

protection when used with the included memory foam tips.

CONTENTS

• AESEB1 Bluetooth

Jobsite Earbuds

• Charging Case

• 12" (30 cm) USB-A to USB-C Cable

• 3 Sets of Memory Foam Tips (for hearing protection)

• 3 Sets of Silicone Tips (for casual listening)

• Instruction sheet

GENERAL SPECIFICATIONS

• Earbud Dimensions: 0.84" × 0.65" × 0.96" (21.4 × 16.5× 24.4 mm)

• Charging Case Dimensions: 3.15" × 1.50" × 1.56" (80.0 × 38.1 × 39.7 mm)

• Weight (Charging Case and Earbuds): 2.4 oz. (57.7 g)

• Wireless Compatibility: Devices with Bluetooth

Version 5.0

• Wireless Connection Range: 32.8 ft. (10 m) in open space

• Hearing Protection: 28dB NRR (with

memory foam tips)

• Support Pro les: A2DP, AVRCP, GAVDP, HFP, HSP

• Frequency Response: 20Hz – 20kHz

• Earbud Battery Type: Li-Ion Coin Cell, 3.7V / 60mAh (0.22 Wh each)

• Case Battery Type: Li-polymer: 3.7V / 500mAh (1.85Wh)

• Charging Requirements: Maximum 5V DC, Minimum 0.4A

• Charge Time: Earbuds: Approx. 2 hours Case: Approx. 2 hours

• Runtime (at 70% volume): ~5 hours w/ earbuds only, ~15 hours w/ charging case

• Maximum Volume: 95 dB at 1 kHz, 16 volume levels

• Recommended Volume For Prolonged Use: <85dB at 1 kHz

• Certi cations: FCC, IC, DOE/CEC, NRCAN

• FCC ID: 2AI28-AESEB1

• IC: 21655-AESEB1

• Operating/Charging Temperature: 32° to 113°F (0° to 45°C)

• Storage Temperature: 14° to 122°F (-10° to 50°C)

NOTE: Periodic recharging is recommended during prolonged storage.

• Relative Humidity: <75% non-condensing

• Drop Protection: 6.6' (2m)

• Ingress Protection (IP) Rating: Earbuds: IP67 Case: IP4X

Specifications subject to change.

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

• Silicone tips on earbuds do not provide hearing protection. Only memory foam tips on

earbuds provide hearing protection.

• Use only appropriately sized Klein Tools memory foam tips for hearing protection in loud-

noise environments. Improper fit of this device will reduce its effectiveness in attenuating

noise. Consult the operating instructions section for proper fit.

• 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.

• 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.

• No user-serviceable parts inside. Do not open enclosure or attempt to repair the earbuds or

charging case.

• DO NOT expose to direct sunlight, open flame, heat sources, equipment that produces heat,

or extremes in environmental temperature.

• NEVER immerse charging case in water or other liquids. Avoid spilling liquids or dust into

openings of charging case.

• Charging case cover and USB-C port cover must be properly sealed to achieve specified

water & foreign object ingress protection. Keep 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 case cover or USB-C port cover if wet or in a wet environment.

Dry the charging case thoroughly before opening the charging case cover or USB-C port

cover.

• When the case is charging, make sure there is adequate space to allow ventilation of

internally generated heat.

• Use safety-rated power supply or wall adapter. Never use power supply or wall adapter that

exceeds the specified charging voltage and current.

• Route the power supply cable so that it will not be stepped on or pinched by other objects.

OPERATING INSTRUCTIONS

CHARGING THE CASE

Insert the USB-C end of the included charging cable into the USB-C port of the

charging case. Connect the USB-A end of the cable into an appropriate charging

source (see GENERAL SPECIFICATIONS section). The Battery Gauge

will indicate

charge status per the table below.

CHARGING THE EARBUDS

Place earbuds into the charging case. Provided the charging case has been charged,

the earbuds will begin charging. The earbud LED will indicate charge status per the

table below.

LEGEND

Not Illuminated Solid Yellow Solid Green Solid Red Blinking

CHARGING CASE CHARGE STATUS LED INDICATORS

LED Status % Charged

Not illuminated

Blinking red

0% to 24% charged

Not illuminated

Blinking yellow

Solid red

25% to 49% charged

Not illuminated

Blinking green

Solid yellow

Solid red

50% to 74% charged

Blinking green

Solid green

Solid yellow

Solid red

75% to 99% charged

Solid green

Solid yellow

Solid red

100% charged

EARBUD CHARGE STATUS LED INDICATORS

LED

Status % Charged

Blinking red (~every 5 seconds) 0% to 99% charged

Not illuminated 100% charged

Warning or Caution

Risk of Electrical Shock

Read Instructions

FCC. Conforms with particular Code of Federal Regulations.

WEEE – Electronics disposal

Energy Ef ciency Veri ed

Bluetooth

SIG Certi ed

SYMBOLS ON PRODUCT

NOISE REDUCTION RATING (NRR)

The NRR for the AESEB1 Bluetooth

Jobsite Earbuds is 28dB. It is tested and in

accordance with ANSI S3.19-1974. To ensure adequate hearing protection, the

provided memory foam tips must be used with the Bluetooth

Jobsite Earbuds.

ANSI S3.19-1974 TESTING

Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000 NRR

Mean Attenuation 34.3 31.7 36.1 35.3 37.7 40.4 41.0 46.3 45.8

Standard Deviation

3.9 3.0 3.3 3.6 3.9 4.3 3.6 4.1 2.8

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 93dB(A).

• The NRR is 28dB.

• The level of noise entering the ear is approximately equal to 65dB(A).

CAUTION: For noise 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.