M E G A P H O N E
Made in the USA of U.S.
and imported parts. WWW.BLUEOCEANAUDIO.COM
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Nielsen-Kellerman
21 Creek Circle Boothwyn, PA 19061
610.447.1555 · www.nkhome.com
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• NOTE the alignment guides on the battery pack – two on one end,
one on the other.
• Align the battery pack guides with the matching grooves on the
Blue Ocean Megaphone and insert the battery pack. DO NOT
FORCE the pack into the charger.
• Turn battery pack knob until it clicks.
INSTALLING THE BATTERY PACK
• Turn knob clockwise until you hear a 'click' to power on the Blue
Ocean Megaphone.
• Continue turning knob to higher numbers to increase volume.
TURN ON / INCREASE VOLUME
M
A
X
2
3
4
5
7
6
WARNING! THE BLUE OCEAN MEGAPHONE IS
LOUD. AMPLIFIED SOUND OR LOUD FEEDBACK
MAY CAUSE DAMAGE TO A PERSON’S EARS OR
HEARING. DO NOT OPERATE THIS MEGAPHONE
IN CLOSE PROXIMITY TO A PERSON’S EARS.
USE EXTRA CAUTION WHEN OPERATING NEAR
FULL VOLUME OR WHEN TRIGGERING THE
HORN OR SIREN MODES.
'Click'
"Click"
1
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• Turn knob counterclockwise to reduce volume.
• Continue turning knob until you hear a 'click' at the symbol to
power off.
FOR MAXIMUM BATTERY LIFE, TURN OFF WHEN
NOT IN USE USE (30 HOURS STANDBY TIME).
DECREASE VOLUME / TURN OFF
M
A
X
2
3
4
5
7
6
• After turning the Blue Ocean Megaphone on, push the talk trigger
to activate the Blue Ocean Megaphone for speaking. For maximum
battery life, push the talk trigger only when speaking.
• Hold your mouth close to and in line with the foam microphone
screen. Use a normal to slightly increased speaking volume to
maximize clarity.
• Adjust the volume to a level where there is no feedback (howling,
squeaking or squealing sounds). This level will differ depending
upon the openness of the area of operation and the volume of your
speaking voice.
• To maximize volume and clarity, point the megaphone directly toward your listeners from a safe distance.
• To reduce feedback, do not aim the Blue Ocean Megaphone
directly at solid surfaces or the water.
OPERATION
TALK TRIGGER
'Click'
2
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• Plug an NK Blue Ocean Microphone into the microphone connector
to enable hands-free operation.
• The Blue Ocean Megaphone amplier is always “on” when the microphone is plugged in. It is not necessary to push the talk trigger.
• Depending on conditions, you may be able to use a higher
volume
setting when using the external microphone without experiencing
feedback. Use of the external microphone is recommended when
maximum volume and range is desired.
AVOID EXCESS BENDING OF THE MICROPHONE
CABLE AND CONNECTOR WHEN PLUGGED IN.
Your Blue Ocean Megaphone is equipped with a directional noisecanceling microphone element. Because of the extreme volume and
proximity of the Blue Ocean Megaphone speaker unit, this microphone is designed to isolate your voice and prevent feedback. For
the best sound quality, position your mouth close to the microphone
port when using the internal microphone. To reduce fatigue and the
need to position your mouth when speaking, consider plugging in an
NK Microphone for hands free operation.
EXTERNAL MICROPHONE
INTERNAL MICROPHONE
• The siren and fog horn modes are
always available and do not re-
quire activation of the talk trigger.
• Push the S/H button up towards
“S” to activate the siren. Release
to turn off.
• Push the S/H button down towards “H” to activate the fog
horn.
Release to turn off.
• The siren and foghorn are always at “Max” volume and the volume
is not adjustable.
TO AVOID HEARING DAMAGE, DO NOT ACTIVATE
THE SIREN OR HORN NEAR A PERSON’S EARS.
SIREN AND FOG HORN
SIREN/FOGHORN
BUTTON
3
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• The status LED indicates the Blue Ocean Megaphone operating
status and capacity of the installed battery pack as follows:
MEGAPHONE STATUS & ERROR LIGHTS
Any light
Megaphone power is “On”
Solid Green
26 to 100% capacity
Solid Yellow
11 to 25% capacity
Solid Red
6 to 10% capacity
Flashing Red
Less than 6% capacity
Flashing
Green
Yellow
Red
Unit is overheated or has an error
• Turn the unit off and put it in a cool place.
It should return to normal operation when
cooled down.
• To clear an error, turn the unit off, remove
the battery, reinsert the battery and turn on
again. If the error persists, try re-charging
the battery in the charging dock. If the error
light persists after these steps, remove the
battery and contact NK for support.
4
Your Blue Ocean
®
Megaphone is completely waterproof and will not
be harmed by use in the rain. However, if the wind screen foam inside of the microphone port becomes saturated with water, the water
will inhibit sound from reaching the microphone and result in poor, or
even no, sound transmission. Accordingly, we recommend that you
avoid allowing rain to fall directly into the microphone port. If the port
does become saturated with water, you can clear it by holding the
megaphone battery side down and shaking it, or by blowing once or
twice directly into the microphone port until your voice is clear again.
It is not necessary for the wind screen to be completely dry. Do not
attempt to poke or squeeze the wind screen dry as this may
damage the waterproof membrane at the base of the microphone port, destroying the waterproof seal of your unit.
USING YOUR BLUE OCEAN MEGAPHONE
IN THE RAIN
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BATTERY CHARGING & CAPACITY
• Charge your battery pack ONLY with an NK or Blue Ocean battery
charger following these instructions. You may also safely use an
NK Cox Box following the provided instructions if available.
• Plug the charger into a standard wall outlet. NOTE: The battery
charger is capable of accepting all world currents. If traveling,
you need only obtain an inexpensive adapter plug for your
destination’s outlet conguration to use your battery charger.
• NOTE the alignment guides on the battery pack – two on one end,
one on the other.
• Align the battery pack guides with the matching grooves on the
Charger and insert the battery pack. DO NOT FORCE the pack into
the charger.
• Turn the battery pack knob until it clicks. The battery will
begin charging.
• Charging Time: Charging a fully depleted battery to 100% requires
12 hours. A partially discharged battery will recharge more quickly.
• Operating Capacity & Standby Time: A fully-charged battery
will provide 8 hours of typical operation, dened as speaking 35%
of the time at volume level 6, and 30 hours of standby time. Hours
of operation will vary signicantly depending on the volume,
continuity of operation, and microphone use.
• Charge Retention: A charged battery will retain its charge for up
to two months if left in the Blue Ocean Megaphone and six months
if stored separately.
'Click'
5
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• Cycle Life: An NK Blue Ocean battery pack can be expected
to provide 80% of its rated capacity after 300 charge/discharge
cycles and 60% after 500 cycles. Storing, transporting or using
your battery pack at temperatures exceeding 115°F/45°C will
substantially reduce the cycle life of your battery pack.
BATTERY CHARGER STATUS & ERROR LIGHTS
Any light
Charger is receiving power and battery
pack is inserted
Flashing Red
Charging, 1 to 10%
Flashing Yellow
Charging, 11 to 25%
Flashing Green
Charging, 26 to 99%
Solid Green
Fully Charged, 100%
Flashing
Green
Yellow
Red
Battery pack is overheated or has
an error.
• Overheating can be caused by
charging at temperatures over
115°F/45°C or in direct sunlight.
Remove the battery pack from the
charger and put it in a cool place. Try
charging again in a cool location after
the battery pack has cooled down.
• To attempt to clear a battery error,
remove the battery pack from the
charger then reinsert the battery pack
to restart charging. If the error light persists, remove the battery pack from the
charger and contact NK for support.
DO NOT USE OR CHARGE
A BATTERY PACK THAT
HAS GIVEN REPEATED
BATTERY ERRORS .
6
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MAINTENANCE & DISPOSAL
• Clean your Blue Ocean Megaphone with plain water or a neutral
detergent. Avoid contact with solvents and/or gasoline.
• Always keep a protective bumper installed to minimize impact
damage. Order a replacement bumper from NK if torn or damaged.
• Clean and maintain the rubber microphone plug and sockets with
the NK Maintenance Kit. Keep the sockets free of debris and corrosion by cleaning with a ne drill bit (gure a) and lubricating with
electrical contact grease (gure b). Lubricate the outside of the
rubber plug with silicone grease (gures c and d).
BATTERY PRECAUTIONS
WARNING! THE NK BLUE OCEAN BATTERY
PACK CONTAINS LITHIUM-ION POLYMER
CELLS. FOLLOW THESE PRECAUTIONS!
• Do not ever subject to re or high temperatures
(> 140°F / 160°C).
• Do not charge, use, transport or store above 115°F/45°C.
• Do not charge below 32°F/0°C
• Do not puncture or open the battery pack.
• Do not use a pack that has been damaged or has be dis-
played repeated charging errors.
• Stop charging or use immediately and remove the
megaphone or battery charge if you see smoke
or smell fumes.
• If battery pack is damaged, avoid contact with batty electrolyte which may be irritating to skin, eyes and mucous membranes.
• In case of battery re, evacuate the area to avoid inhalation
of fumes. If possible, over the battery with sand to extinguish
the re or use a dry ABC type extinguisher.
7
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SPECIFICATIONS
Power Output 22 watts peak 19 watts rated
Microphone Dynamic weatherproof
Amplier High-efciency Class-D digital amplier
Battery Pack NK Blue Ocean Lithium-Polymer Battery Pack – PN 0105
11.1VDC Typical, 11.1Whr
Battery Charger NK Blue Ocean Battery Charger - PN 0106
Input Voltage: 90-264VAC, 50-60Hz, 7 Watts
Universal input capable – compatible with all world currents
with appropriate adapter plug
Battery Capacity Dependent upon volume and continuity of operation.
8 hours typical operation – dened as speaking 35% of the
time at volume level 6. 30 hours of standby time.
Battery Cycle Life 80% rated capacity after 300 charge/discharge cycles
60% rated capacity after 500 charge/discharge cycles
Dimensions Megaphone: 12.75 x 12 x 8.5 in / 31.75 x 30 x 21.25 cm
Battery Charger: 2.5 x 4.25 x 32.5 in / 6.25 x 10.75 x 8.25 cm
Battery Pack: 3 x 2 x 1.55
Weight Megaphone: 3.4 lbs. with battery pack installed
Battery Charger: 13.6 oz. / 385 gr.
Battery Pack: 3.8 oz. / 108 gr.
Temperature Range Charging 0°C to 45°C / 32°F to 115°F
Storage and Use -20°C to 45°C / -4°F to 115°F
(Battery capacity signicantly reduced below freezing.)
Water Resistance IP-67 (Excludes all dust and excludes water for 30 minutes at
3.3ft / 1M submersion)
Buoyancy Megaphone with battery pack installed oats. Battery pack
alone and charger do not oat.
Drop Resistance MIL-STD-810F 516.5 Procedure IV Transit Shock, drop height
36 in/91 cm onto plywood over concrete.
A B
C D
8
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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 inter-
ference, and 2. This device must accept any interference received, including interference that may
cause undesired operation.
IC
This Class B digital device complies with Canadian
ICES-003.
Conforms with Council Directive 2004/108/EC
(12/15/2004) on Electromagnetic Compatibility.
RoHS
RoHS
(Reduction of Hazardous Substances) compliant.
Marked in accordance with the WEEE (Waste
Electrical and Electronic Equipment) Directive.
Please do not dispose of the Megaphone, Charger
or Battery Pack in your household trash. Return
to NK, an NK dealer, or a designated recycling
center for proper recycling and disposal.
We provide full factory service on every product we manufacture for
as long as we make the product (and as long after as component
availability permits). If we can’t repair a product, we will offer you a
brand-new replacement under our Customer Care Program - even
for accidental damage and misuse. If you have a problem with an NK
product, visit www.nkhome.com or contact us by phone, fax, e-mail
or in person and we’ll do our best to make it right.
SERVICE
9
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Nielsen-Kellerman Co. (“NK”) guarantees the NK Blue Ocean
Megaphone to be free of defects in materials and workmanship for a period of TWO YEARS from your date of purchase.
NK will repair or replace any defective product or part when notied
within the warranty period, and will return the
product via domestic ground shipping or NK’s choice of method of
international shipping at no charge.
The following issues do not result from a manufacturing defect and
are not covered under this warranty:
• Damage due to improper use or neglect (including corrosion)
• Damage resulting from severe impact, crushing or
mechanical harm
• Modications or attempted repairs by someone other than an
authorized NK repair agent
• Normal wear and tear
• Diminished battery capacity within normal range for the number of
charge/discharge cycles
Your warranty period will be measured from your date of purchase.
Ensure full warranty coverage by REGISTERING your NK product
promptly at www.nkhome.com. We keep your registration infor-
mation in strict condence and do not sell it, share it, or use it for
anything but product-related information bulletins (which you may
decline receiving). If you do not register and cannot provide proof of
purchase, your warranty period will be measured from our date of
manufacture by serial number. Removing or defacing the serial number voids this warranty.
Except for the warranties set forth herein, NK disclaims all other
warranties, expressed, implied or statutory, including, but
not limited to, the implied warranties of merchantability or
tness for a particular purpose. Any implied warranties that may
be imposed by applicable law are limited to the term of this warranty.
In no event shall NK be liable for any incidental, special or consequential damages, including, but not limited to, loss of business, loss
of prots, loss of data or use, whether in an action in contract or tort
or based on a warranty, arising out of or in connection with the use
or performance of an NK product, even if NK has been advised of
the possibility of such damages. You agree that repair, and (upon
availability) replacement, as applicable, is your sole and exclusive
remedy with respect to any breach of the NK Limited Warranty set
forth herein. All product liability and warranty options are governed
exclusively by the laws of the Commonwealth of Pennsylvania.
LIMITED WARRANTY
10
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