OVERVIEW
13.
1.
-25
25-WATT
MEGAPHONE
WITH MP3 PLAYER, WHISTLE,
AND SIREN
Thank you for choosing Polsen.
The Polsen MP-25 Megaphone is a powerful
and durable solution for voice amplication and
is ideal for high-noise areas and large open
spaces. With a maximum output of 25 watts,
the MP-25 is audible over 1,500 yards away.
The MP-25 features an attached hand-held
microphone with a coiled cable allowing
operators to face a different direction than the
crowds they are addressing. The microphone
can also be mounted on the mic holder enabling
easy, one-handed operation.
9.
8.
7.
14.
1. Microphone
2. Talk button
3. Mic volume control wheel
4. Mic holder
5. Trigger control
6. SIREN/SPEAK/WHISTLE selector
7. USB port
10.
11.
12.
6.
5.
15.
4.
8. M (Recall MARK)
9. Power LED
10. SD card slot
11. Playback control buttons
12. Aux input
13. Battery compartment
14. Battery sleeves (2)
15. Shoulder strap
2.
3.
The MP-25 also features a built-in MP3 decoder
that plays les stored on SD cards or ash
drives. Since the microphone and MP3 player
have independent volume controls, users
have the option of speaking over music or
prerecorded audio. For more playback options,
mobile devices such as MP3 players or smart
phones can also be connected to the MP-25
through the 3.5 mm auxiliary (Aux) input jack.
Tough ABS construction of the outer shell
protects the megaphone from impact and
the demands of outdoor use. The included
adjustable shoulder strap provides extra support
during periods of extended use.
Among the benets you’ll enjoy:
• Audible speech more than 1,500 yards away
• SD card slot, USB port, and Aux input
• Built-in MP3 player
• Attached microphone with coiled cable, locking
talk button, and volume control
FEATURES
Audible over 1,500
yards away
Built-in MP3 player
with SD card slot and
USB port
Aux input for
connecting external
devices
PRECAUTIONS
• Please read and follow these
instructions and keep this
manual in a safe place.
• Keep this product away from
water and any ammable
gases or liquids.
• Photos and diagrams are for
illustrative purposes only.
Built-in siren and
whistle
Attached microphone
with coiled cable,
locking talk button,
and volume control
Ergonomic handle
with trigger
Caution
Exposure to high sound levels may cause
hearing impairment or loss. Be sure to observe
the following instructions:
• Reduce the volume to its lowest setting
before use.
• Never point the megaphone directly at a
person's ear when using in close proximity.
• Point the megaphone toward the ground
when testing volume levels.
Adjustable shoulder
strap
Sturdy ABS
construction
INSTALLING THE BATTERIES
MP3 player operation
ONE-YEAR LIMITED WARRANTY
1. Unlatch the battery compartment and
insert the two batteries into the plastic
sleeves.
2. Place the sleeves, with the partially-closed
ends down, into the battery compartment.
Be sure to match the polarity with the
diagram on the inside of the battery
compartment.
3. Close the battery compartment and secure
the battery compartment latch.
OPERATING THE MP-25
Voice Amplification:
The microphone can be used as a handheld
device, or attached to the mic holder for onehanded operation.
1. Make sure the selector is in the SPEAK
position.
2. For intermittent use: press the TRIGGER
CONTROL or the TALK button to activate
the microphone.
3. For constant voice amplication: press and
lock the TALK button on the microphone.
4. Gradually adjust the MIC VOLUME CONTROL
to the desired output volume.
Using the alert sounds:
1. Move the selector to the SIREN or WHISTLE
position.
2. To end the alert sound, move the selector
back to the SPEAK position.
Note: The siren’s and whistle’s volume level
is preset at a high volume and cannot be
adjusted using the mic volume control.
Using the MP3 Player:
Playing prerecorded music or audio
1. Insert a memory card into the SD card slot,
or insert a ash drive into the USB port.
Play/
Pause
Pauses and
resumes
playing the
MP3
/V-
/V+
Short press:
skips to
previous track
Short press:
skips to next
Long press:
decreases
volume
Long press:
increases volume
track
M
(Recall
MARK)
Short press:
skips to the
beginning
Long press
(LED blinks):
pauses track
of the track
without pause
2nd long press:
resumes play at
the beginning of
the track
Speaking over music
The microphone remains active while the MP3
player or mobile device is operating.
1. With the MIC VOLUME CONTROL set slightly
above minimum volume, adjust the volume
of the music:
Use the V+ and V- buttons when using an
SD card or ash drive.
If using a mobile device, use the volume
controls on the device.
2. While music is playing, set the microphone
volume to the desired level using the MIC
VOLUME CONTROL.
Note: The MIC VOLUME CONTROL acts as
a master volume control. By decreasing
the volume of the microphone it will also
decrease the volume of the MP3 or mobile
device. However, it will not increase the MP3
or auxiliary volume beyond the level at which it
was originally set.
This Polsen product is warranted to the
original purchaser to be free from defects in
materials and workmanship under normal
consumer use for a period of one (1) year
from the original purchase date or thirty
(30) days after replacement, whichever
occurs later. The warranty provider’s
responsibility with respect to this limited
warranty shall be limited solely to repair or
replacement, at the provider’s discretion, of
any product that fails during normal use of
this product in its intended manner and in
its intended environment. Inoperability of
the product or part(s) shall be determined
by the warranty provider. If the product has
been discontinued, the warranty provider
reserves the right to replace it with a model
of equivalent quality and function.
This warranty does not cover damage or
defect caused by misuse, neglect, accident,
alteration, abuse, improper installation
or maintenance. EXCEPT AS PROVIDED
HEREIN, THE WARRANTY PROVIDER MAKES
NEITHER ANY EXPRESS WARRANTIES NOR
ANY IMPLIED WARRANTIES, INCLUDING BUT
NOT LIMITED TO ANY IMPLIED WARRANTY
OF MERCHANTABILITY OR FITNESS FOR
A PARTICULAR PURPOSE. This warranty
provides you with specic legal rights, and
you may also have additional rights that
vary from state to state.
To obtain warranty coverage, contact the
Polsen Customer Service Department to
obtain a return merchandise authorization
(“RMA”) number, and return the defective
product to Polsen along with the RMA
number and proof of purchase. Shipment of
the defective product is at the purchaser’s
own risk and expense.
2. If using a mobile device, connect it to the
Aux input jack with a mini-plug connector.
3. Press and lock the TALK
button. The LED will light to
indicate the MP3 player is
active.
4. If using an SD card or ash drive, the audio
will automatically begin playing.
5. When using a mobile device, play and
control the audio from the device.
6. Unlocking the TALK button stops all audio
playback.
SPECIFICATIONS
POWER OUTPUT 25 W
HORN DIAMETER 9” (22.9 cm)
LENGTH 13.3” (33.8 cm)
WEIGHT (WITHOUT BATTERIES) 3.7 lb. (1.7 kg)
POWER SOURCE 8 × C-size batteries
BATTERY LIFE 5 hours (normal use)
AUDIBLE RANGE More than 1,500 yards
(not included)
For more information or to arrange
service, visit www.polsenaudio.com or call
Customer Service at 212-594-2353.
Product warranty provided by the Gradus Group.
www.gradusgroup.com
Polsen is a registered trademark of the Gradus Group.
© 2014 Gradus Group LLC. All Rights Reserved.
GG1