Walker's Silencer BT User manual

SILENCER BT
USER MANUAL
Included
•Left and right Silencer BT electronic earbuds
•Small / medium / large (left/right) Sure-Lock™ sizing fins (6 total)
•Small / medium / large (one set for each ear) foam eartips (6 total)
•Cleaning Brush
•Charging Case with Detachable Lanyard
•Micro USB cable
•FREE WALKERS APP available on iTunes & Google Play
Charging the Earbuds
The earbuds automatically recharge while resting in their respective bays
in the charging case. The earbuds magnetically snap into the bays to
create a reliable connection. The status light on the earbuds will turn red
when the earbuds begin charging and turn blue when charging is
complete. Battery Life 14 Hours / 4 Hours Bluetooth Streaming
Charging the Charging Case(estimated 6 total earbud charges)
Using a USB Micro-B cable, connect the charging case to a USB power
adapter. With most adapters, the case should be fully charged within 2 ½
hours.
Fitting the earbuds
While fitting the earbuds, ensure that they are powered off. Slide the Sure-
Lock™ sizing fins over the housing, and install the foam tips to the ear
canal post on the device. If you are unsure of which size fins and foam tips
to use, begin with the medium size.
When ready to insert into ear, roll and compress the foam tip between
your fingers. Insert into your ear and hold in place for 10-15 seconds to
allow the foam to expand and seal within your ear.
A properly sealed Silencer BT earbud will significantly reduce outside
noise, muffling the ambient sound. When fitting, be sure the earbuds are
powered off when testing how well the foam tips seat your ears.
Try different combinations of the included sizing fins and foam tips to
obtain a good seal and secure fit. If the foam tip or sizing fin causes pain
while worn, try a smaller size that still created a good seal with your ear.

Earbud Usage
Power
•Power on: On each earbud, hold the MFB / power button down for 2 seconds.
•The left earbud will automatically enter Bluetooth pairing mode when powered on for the first
time and await pairing with a mobile phone. Subsequent power ups will have the device
attempt to reconnect to the previously connected device.
•Both earbuds will recall their previous volume and hearing mode settings when powering on.
•While both earbuds are powered on, they will automatically connect to each other within a
few seconds and sync hearing modes.
•The earbuds will power down after a period of inactivity (default 2 hours). To power down,
the earbuds must have no input for the given period of time AND not be actively streaming
Bluetooth audio.
•Power off: On either earbud, press and hold the MFB / power button for 2 seconds and both devices
will power down.
Silencer Features
In addition to function as highly effective passive ear protection, the Silencer BT earbuds have several
additional features to enhance your hearing protection and safety.
•Automatic high volume suppression: The earbuds will automatically suppress loud sounds, both
transient and sustained, limiting the maximum possible output level to 97dB in Universal hearing
mode and 103dB in Power Boost hearing mode.
•Ambient volume control: For a customized hearing solution where one ear requires louder audio
than the other ear, the volume of each earbud can be set individually from the app.
•Hearing modes: Four ambient audio profiles are available to create a custom listening experience.
•Universal: Standard audio profile, no adjustments are made to incoming audio
•Clear Voice: Advanced profile designed to better isolate human voices.
•High Frequency Boost: Hearing profile designed to boost frequencies above 1kHz.
•Power Boost: Incoming audio is boosted to be twice as loud as Universal mode.
Controls
•Ambient volume control: Press the volume up or down button on either earbud to adjust the ambient
volume for that earbud. If the earbud volume controls are linked, then pressing a volume control
button on either earbud will affect both earbuds (see Walker’s BT app features section for more
details).
•Hearing mode control: Press the power/hearing mode button on the right earbud to cycle the hearing
mode for both earbuds.
BT Multifunction (MFB)
Ambient Volume Up
Ambient Volume Down
Left Earbud Right Earbud
Power / Hearing Mode
Ambient Volume Up
Ambient Volume Down

Bluetooth media and phone call controls
•Media and call volume control: The volume controls on the earbuds are limited to ambient audio
adjustment. For media and call volume adjustment, please use the built-in volume control on your
mobile phone.
•Play/pause music: Press the MFB while music is playing to pause playback. Press the MFB again
to resume playback.
•Next track: Press the MFB twice while music is playing to advance to the next track.
•Answer and end calls: Press the MFB to answer an incoming call. Pressing the MFB again during a
call will end it.
•Reject calls: Press any volume button on the left earbud to reject a call.
Bluetooth pairing process
1. With the left earbud powered off, long press the MFB for 5 seconds.
The earbud will announce that it is in pairing mode and the status light will flash blue and red.
2. Enable Bluetooth on your mobile phone and search for nearby devices.
3. Select “Silencer BT” from the list of found devices. Enter “0000” if a pairing code is required.
The earbud will announce that the device is connected when the pairing process is complete.
Walker’s CONTROL APP
FREE on iTunes and Google Play
The ambient monitor settings of the earbuds can be adjusted from the Walker’s BT app. While the
earbuds are connected via Bluetooth to your mobile phone, the app will automatically synchronize with
the earbuds current settings. From the app, you can set the ambient monitor volume, earbud volume
link, hearing mode and sleep timer for both earbuds.
•Ambient volume control: Mimics the physical volume controls found on the earbuds
•Earbud volume link: By default, the ambient volume control of both earbuds are linked together,
meaning that pressing a volume button on the earbuds themselves will adjust both earbuds by one
level. The volume controls can be unlinked by pressing the link button between the two control
sliders. Note that the linked volumes levels can only increase or decrease until one slider reaches its
maximum or minimum level, respectively.
•Advanced hearing modes: Applies the hearing modes available using the hearing mode control
found on the right earbud.
•Inactivity sleep timer: To conserve battery life when the earbuds are not in use, the earbuds can be
configured to power off after a set time. The earbuds will power off when no button have been
pressed for the designated time AND when they are not connected to a device via Bluetooth.
NRR Information:
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 level of noise entering a person's ear, when hearing protector is worn as directed, is closely
approximated by the difference between the A-weighted environmental noise level and the NRR.

LIMITED WARRANTY
Walker’s warrants this product to the original purchaser to be free from defects in materials and workmanship, under normal use and
condi ns for a period of One Year from the date of the original purchase. Under this warranty, this unit will be replaced or repaired at our
op n, without charge for parts or labor, excluding ba eries, for this period
This warranty is void if any of the following occur:
1. The warranty card was not sent in at the me or purchase
2. The unit is not owned by the original purchaser at the me of the warranty claim
3. The unit has been tampered with, opened or punctured
4. The unit has been immersed in water or other liquids, allowed to be filled with dirt or dust, or otherwise physically abused
This shall be the exclusive wri en warranty of the original purchaser and neither this warranty or any other warranty, expressed or implied,
shall extend beyond the 12-month period listed above. In no event shall Walker’s be liable for consequen al damages, consequen al
property damage, or consequen al personal injury. (Some states do not allow limita ns on implied warran es or exclusions of
consequen al damages, so that these restric ons may not apply to you). This warranty gives you specific legal rights, and you may have
other rights, which vary from state to state.
TOLL-FREE CUSTOMER SUPPORT [phone]
IC NOTE
This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is
subject to the following two conditions:
1. This device may not cause interference.
2. This device must accept any interference, including interference that may cause undesired operation of the device.
L'émetteur/récepteur exempt de licence contenu dans le présent appareil est conforme aux
CNR d'Innovation, Sciences et Développement économique Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes :
1. L'appareil ne doit pas produire de brouillage;
2. L'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.
FCC ID: MV3-GWPSLCRBT
IC : 9029A-GWPSLCRBT
FCC statement:
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.
FCC Caution:
Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.