3M WORKTUNES WIRELESS User manual

1
WORKTUNESTM
CONNECT + AM/FM HEARING PROTECTOR

2

3
3MTM WorktunesTM Connect + AM/FM Hearing Protector with Bluetooth®
wireless technology provides entertainment and hearing protection in one easy
to use and comfortable earmuff. Seamlessly streams music from mobile phones
or any other Bluetooth® enabled device.
CONTENTS
Basic Operations 4
Quick Start Guide 12
Safety Information 14
Noise Reduction Rating (NRR) 17
Optional Lithium Ion Battery 19
WORKTUNESTM
CONNECT + AM/FM HEARING PROTECTOR

4
Basic Operations
Install two 1.5V AA batteries as shown.
Close battery door until it clicks.
Note:
- Do not mix old and new batteries.
- Do not mix alkaline, standard or
rechargeable batteries.
Press and hold the On/Off/Volume
button for 2 seconds to power hearing
protector. Turn the knob to adjust the
volume up or down.
Installing Batteries: Power and Volume:

5
Fully extend sliders and place cups
over ears. Then, tighten headband
using sliders.
For improved comfort, insert the
Comfort Pad into the headband holes
from below with the textured cushion
facing down. To remove the padding,
simply hold the headband securely, and
push down on the headband padding.
Fitting Headset: Headband Padding:

6
Basic Operations
Hearing protector will give a “battery low”
warning every one minute when battery
voltage is low. Additional warnings will
occur as hearing protector powers down.
Replace batteries at this time.
After 2 hours of non-activity, a 10-second
countdown will begin before hearing protector
automatically powers down. To reset auto
shut-off, simply adjust volume knob.
After auto shut-off, press and hold the On/Off/
Volume knob for 2 seconds to turn back on.
Low Battery Warning: Auto Shut-off:
BATTERY
LOW

7
Safe Volume Control Technology allows for increased
music volume while protecting your hearing, by
controlling sound levels over an 8-hour work day.
Higher sound exposure is allowed for a period of time,
and then gradually reduced if necessary below the
long term average of 82 dB(A) for extended use.
Press and Hold the Source button.
The device will cycle through the
three equalizer modes (Pop, Rock &
Flat), then release the button when
you reach the desired mode.
82 dB(A)
Safe Volume Control: Music Equalizer:
Download complete WorkTunesTM Connect + AM/FM Hearing Protector User Manual online at 3MSafety.com.

8
AM/FM Mode
1. Select Mode
Press the Source button to activate
AM/FM Mode. This mode will allow
you to scan through all stations.
2. Tune or Seek
Turn the Tuning Dial clockwise to
scroll through all stations. Press the
Tuning Dial in to seek stations.
3. Save Stations
Press and hold the
Function button for
2 seconds to save
a station.
AM/FM Radio Mode allows you to scan through
all radio frequencies, save your favorite stations,
and recall your saved stations.
Change Frequency Spacing for WorkTunesTM Connect + AM/FM Hearing Protector
With the hearing protector off, press and hold the Power button and center of the
Tuning Dial together. Voice Assist will announce “Settings Mode.” Use the Tuning
Dial to scroll through the settings and press the center to select the appropriate
setting and move onto the next function in the menu. Select 10 kHz for North
America (default) and 9 kHz for Australia and Europe. Press the Function key to exit.

9
1. Auto Program local stations
To auto program the first 25 available
AM or FM stations:
In AM/FM Mode press and hold the Tuning Dial in
for 3 seconds–you will hear “Auto-Seeking” and
beeps as stations are programmed.
2. Recall Mode
Press the Function button to select
Recall Mode. This mode will allow you
to scan through all your saved stations.
3. Recall Stations
Turn the Tuning Dial clockwise or press
to scan through your saved stations.
4. Delete Stations
Press and hold the Function button
for 2 seconds to delete a saved station.

10
2. Forward/Back or Pause/Play
Turn the Tuning Dial to scroll forward or backward.
Press the Tuning Dial in to pause/play.
Incoming Calls
Once paired, incoming phone calls will cause the music to
be muted (regardless of the input mode selected) and you
will hear your phone’s ringtone.
To answer an incoming call, press the center of the Tuning
Dial once. To disconnect from a call, press the Tuning Dial
once more. After disconnecting from the call you will hear
“Call Terminated.” To reject a call and return to Bluetooth ®
audio, press and hold the center of the Tuning Dial. After
rejecting a call you will hear “Call Terminated.”
1. Pair the Device Function
Press Source button to activate Bluetooth ® Mode. Next, press and hold
the Function button for two seconds until you hear, “Bluetooth Pairing
On”. On your device, connect to “Worktunes Wireless” using Bluetooth ® .
You will hear “Bluetooth Connected” when your device is paired
successfully. Set the device volume to its maximum level and use the
On/Off/Volume knob to control the volume of the hearing protector.
WorkTunesTM Connect + AM/FM
Hearing Protector Bluetooth ® Range
The typical range between a Bluetooth ® device and the WorkTunes
TM
Connect + AM/FM Hearing Protector is approximately 25 feet.
This distance may vary depending on the device. As the distance between
the Bluetooth ® device and the hearing protector is increased, the risk of
signal dropouts will also increase.
For best results, keep your Bluetooth ® device on your body or within
arm’s length of the WorkTunes
TM
hearing protector while using
Bluetooth ® mode.
Bluetooth®Mode
Bluetooth ® Mode allows you to connect
hearing protector to your Bluetooth ® Device.

11
4-pole
stereo
audio
cable
Audio Input Mode
1. Connect Device
Connect the device to auto activate Audio Input Mode. Connect the device using a 3 or 4-pole 3.5mm stereo audio cable
(not included). Turn on hearing protector. Use the native controls on the device to control input volume.
Audio Input Mode allows you to directly connect
hearing protector to any device.
Note: You can also use the Source button to activate.
2. Forward/Back or Pause/Play
Turn the Tuning Dial to scroll forward or backward. Press the Tuning Dial to pause/play.
A 3 or 4-pole 3.5mm stereo audio cable is required for this feature.
Note: This feature may not be compatible with some phones.

12
twist
hold 2 sec.
press
press
scroll
press
press &
hold for
3 seconds
+ or –
ON/OFF

13
Freq. Freq.
press press press
press
press & hold press & hold
press & hold
press
press & hold
press
scroll scroll scroll
hold 2
seconds
press
press &
hold for
3 seconds
press
&
hold
press &
hold for
3 seconds
press press press
press
Disabled in Recall Mode Disabled in Recall Mode
Tune Tune FWD/BCK
Recall Recall
Delete
Station
Delete
Station
Store
Station
Store
Station
Seek
Auto
Program
Auto
Program
REJECT
CALL
Seek Pause/Play
Pair
FWD/BCK*
Pause/Play*
FM
MODE
AM
MODE
BT
MODE
LINE
IN
PHONE
MODE
See page 7 for Equalizer function *A 3 or 4-pole 3.5mm stereo cable is required for this feature.
Note: This feature may not be compatible with some phones.
DISCONNECT
CALL
ANSWER
CALL
Quick start Guide

14
Please read, understand, and follow all safety information contained in these instructions prior to
the use of this electronic hearing protection product. Retain these instructions for future reference.
Intended Use:
This electronic hearing protection device is intended to help protect against harmful noise. This electronic
hearing protection device is used in loud-noise environments. Use in any other application has not been
evaluated by 3M and may lead to an unsafe condition.
Explanation of Signal Word Consequences
WARNING:
Indicates a hazardous situation which, if not avoided, could result in serious
injury or death.
CAUTION:
Indicates a hazardous situation which, if not avoided, could result in minor or
moderate injury and/or property damage.
WARNING
These hearing protectors help reduce exposure to hazardous noise and other loud
sounds. Misuse or failure to wear hearing protectors at all times that you are exposed
to noise may result in hearing loss or injury. For proper use, see user instructions or call
3M Technical Service toll free at 1-800-494-3552. In Canada, call 1-800-267-4414.
• To reduce the risks associated with hazardous voltage and fire:
- Never use this product, or charge/replace batteries, in an explosive environment.
- Do not mix old and new batteries.
- Do not mix alkaline, standard, or rechargeable batteries.
- Risk of explosion if battery is replaced by an incorrect type. Dispose of used batteries
according to the instructions.
- When using a 3MTM Alpha 1100 Li-Ion Battery Pack, see instructions provided with Battery Pack for
additional safety information. Only charge using 3rd party certified (such as UL, Intertek, etc.) equipment.
Safety Information

15
The WEEE logo (shown at the left) appears on the product to indicate that this product must not
be disposed of or dumped with your other household wastes. You are liable to dispose of all your
electronic or electrical waste equipment by relocating over to the specified collection point for
recycling of such hazardous waste. Dispose of components in accordance with all applicable local
and governmental regulations.
• To reduce the risks associated with harmful noise:
- Always wear hearing protectors when you are exposed to noise.
- Ensure hearing protection is properly fitted. Follow any fitting instructions included
with this product.
- Do not bend or reshape the headband, as this will cause a loose fit and
sound leakage.
- For best protection, the ear cushions should seal firmly against your 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, worn parts, and for proper fitting.
Replace as needed.
- Do not immerse in water. Clean with a damp cloth and mild soap. Do not use harsh or
abrasive chemicals.
- Do not store the hearing protector in direct sunlight or at temperature above 131°F
(55°C). For example, behind a windshield or in a window.
- Do not change between ‘Safe Volume Control’and ‘Limiter’settings
during a single workday.
CAUTION
• To reduce the risks associated with chemical exposure and fire:
- Do not store with the batteries installed. A leaking battery may cause bodily injury or
damage to the hearing protector.
FCC WARNING:
Any Changes or modifications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
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.

16
Note: 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:
- 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.
This equipment complies with FCC RF radiation exposure limits set forth for an uncontrolled environment.
This transmitter must not be co-located or operating in conjunction with any other antenna or transmitter.
ISEDC WARNING:
This device complies with Innovation, Science, and Economic Development Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions:
1. this device may not cause interference, and
2. this device must accept any interference, including interference that may cause undesired operation of the device.
Radio apparatus containing digital circuitry which can function separately from the operation of a transmitter or an
associated transmitter, shall comply with ICES-003. In such cases, the labelling requirements of the applicable RSS
apply, rather than the labelling requirements in ICES-003.
Warning:
This Class B digital apparatus complies with Canadian ICES-003.
The device is compliance with RF exposure guidelines, users can obtain Canadian information on RF exposure
and compliance.
Safety Information

17
Noise
Reduction
Rating
3M COMPANY
ST. PAUL, MN
Worktunes
™
90542
THE RANGE OF NOISE REDUCTION RATINGS
FOR EXISTING HEARING PROTECTORS
IS APPROXIMATELY 0 TO 30
(HIGHER NUMBERS DENOTE GREATER EFFECTIVENESS)
Federal law prohibits
removal of this label
prior to purchase
LABEL REQUIRED BY
U.S. E.P.A. REGULATION
40 CFR PART 211
SUBPART B
(WHEN USED AS
DIRECTED)
24
DECIBELS
The EPA references to Federal relate to USFederal laws.
NOISE REDUCTION RATING (NRR)
The Environmental Protection Agency (EPA) has selected the Noise Reduction Rating (NRR) as the measure of a hearing
protector
’
s noise-reducing capabilities. 3M makes no warranties as to the suitability of the NRR as a measure of actual
protection from any noise level since such protection depends on the sound level (loudness), how long you listen to
the loud sound and how well you fit the earmuff over your ears. Although hearing protectors can be recommended for
protection against harmful effects of impulse noise, the NRR is based on the attenuation of continuous noise and may
not be an accurate indicator of the protection attainable against impulse noise such as gunfire.
When worn according to the User Instructions, this hearing protector helps reduce exposure to both continuous noises,
such as industrial noises and noises from vehicles and aircraft, as well as very loud impulse noises, such as gunfire. It is
difficult to predict the required and/or actual hearing protection obtained during exposure to impulse noises. For gunfire,
the weapon type, number of rounds fired, proper selection, fit and use of hearing protection, proper care of hearing
protection, and other variables will impact performance. If your hearing seems dulled or you hear a ringing or buzzing
during or after any noise exposure (including gunfire), or for any other reason you suspect a hearing problem, your
hearing may be at risk. To learn more about hearing protection for impulse noise, visit www.3Mcom/hearing.
The NRR may overestimate the hearing protection provided
during typical use due to variation in fit, fitting skill and motivation
of the user. 3M recommends the NRR be reduced by 50% or
in accordance with applicable regulations, for estimating the
amount of noise reduction provided.
The NRR for the WorkTunes
TM
Connect + AM/FM is 24 dB(A).
Improper fit of this device will reduce its effectiveness in
attenuating noise. Consult the enclosed instructions for proper fit.
Test Frequency (Hz) 125 250 500 1000 2000 3150 4000 6300 8000 NRR CSA Class
Mean Attenuation (dB) 20.3 21.6 30.4 35.7 33.1 36.4 38.9 37.3 36.4 24 AL
Standard Deviation 3.5 2.7 3.2 3.1 3.0 3.6 3.9 3.4 3.6
Attenuation Data (ANSI S3.19 – 1974)

18
The level of noise entering a person’s ear when a hearing protector is worn as directed is closely
approximated by the difference between the A-weighted environmental noise level and the NRR.
EXAMPLE
1. The environmental noise level as measured at the ear is 92 decibels dB(A).
2. The NRR is 24 dB(A).
3. The level of noise entering the ear is approximately 68 dB(A).
CAUTION
For noise environments dominated by frequencies below 500 Hz, the C-weighted environmental noise level
should be used. The NRR used in the above example was achieved under laboratory conditions.
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 82 dB(A) when connected to a Personal Music Player
(PMP). 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. The maximum permitted audio input level for
8 hours of usage time, compressed speech and music is 72 mV.
WARRANTY
The WorktunesTM Connect + AM/FM Hearing Protector is warranted to be free of defects in material and
workmanship for a period of one (1) year from the date of original purchase. 3M will, at its option, repair or
replace without charge, except for transportation costs, parts that fail under normal use and service when
operated and maintained in accordance with our instructions. This warranty does not cover damage caused
by misuse, abuse or unauthorized modifications. Proof of purchase is required to verify eligibility.
Test Frequency (Hz) 125 250 500 1000 2000 4000 8000
Mean Attenuation (dB) 16.7 19.2 26.2 34.9 30.8 37.2 35.7
Standard Deviation 3.3 3.4 4.0 3.5 2.8 3.3 3.6
AS/NZS 1270:2002
SLC80 27.9 dB Class 5 Clamping Force: 9.8 N Mass: 342 g
NOISE REDUCTION RATING (NRR)

19
3M
TM
ALPHA 1100 BATTERY PACK
Install one optional Lithium-ION battery pack
as shown. Close battery door until it clicks.
See 3M
TM
Alpha 1100 Lithium-ION battery
pack for additional safety information.
Insert the micro-USB connector cable into the
micro-USB jack. Connect the other end of the
cable to a USB power source to begin charging.
The LED will blink when the battery pack
is charging, and turn solid when charging
is complete.
charging
charged
INSTALLING BATTERY:
BATTERY
LOW
CHARGING BATTERY PACK:
Lithium Ion Battery Pack (OPTIONAL)

WORKTUNESMC
PROTECTEUR D’OREILLES CONNEXION + RADIO AM/FM