• Before installation or use, be sure to carefully read all the 
instructions in this section for correct and safe operation.
• Be sure to follow all the precautionary instructions in this 
section, which contain important warnings and/or 
cautions regarding safety.
• After reading, keep this manual handy for future 
reference.
1. SAFETY PRECAUTIONS
CAUTION
Indicates a potentially hazardous situation which, 
if mishandled, could result in moderate or minor 
personal injury, and/or property damage.
• Cautions on Use 
Be sure to observe the following instructions. Failing to 
observe may cause hearing impairment.
· Reduce the volume to its lowest setting before use.
· Never use the megaphone in close proximity to a
person's ear.
· Point the megaphone toward the ground when
conducting operational tests.
• Make sure to observe the following handling precautions 
so that a fire or personal injury does not result from 
leakage or explosion of the battery. 
· Do not short, disassemble, heat nor put the battery into
a fire.
· Avoid using both new and old batteries together.
· Never charge batteries of the type which are not
rechargeable. 
· Do not solder a battery directly.
· Be sure to use the specified type of batteries.
· Note correct polarity (positive and negative orientation)
when inserting a battery in the unit.
· Avoid locations exposed to the direct sunlight, high
temperature and high humidity when storing batteries.
2. GENERAL DESCRIPTION
The ER-2230W and ER-2930W are 30 W shoulder-type 
megaphones featuring a built-in whistle. Designed to house an 
optional wireless tuner module, the ER-2930W can be used to 
make announcements from remote locations using a wireless 
microphone when so equipped.
3. FEATURES
• The microphone attached to the megaphone is equipped with a 
talk switch and volume control that offer easy operation. 
• An optional wired microphone can be connected to the external 
microphone input to make public address announcements and 
an audio player to the auxiliary input terminal to play music.
• A 12 V storage battery can be connected to the external power 
input terminal for extended operation. 
• The operation panel's power indicator permits easy checks of 
the remaining battery voltage level (either continuously lit or 
flashing)
• Can be mounted on the optional ST-16A speaker stand. 
• Microphone with anti-bacteria treatment improve hygiene and 
safety during use.
• Though not waterproof constructed, the megaphones can be 
used in locations exposed to light rain or a spray of water with 
use of the supplied splash-proof cover. 
4. HANDLING PRECAUTIONS
• Immediately contact your TOA dealer if the following 
irregularities should occur. To avoid unit failure, make no 
further attempt to use the unit in these conditions.
· Smoke coming from the unit or a strange smell detected.
· Water or other foreign objects get inside the unit.
· No sound heard (after checking to be sure that the batteries
are loaded in correct orientation, and satisfactorily charged).
• Avoid storing the unit in humid or dusty locations, in locations 
exposed to direct sunlight, near heaters, or exposed to sooty 
smoke, as these conditions may result in unit failure.
• Do not use the unit in heavy rains or strong winds, or in 
locations where the unit is directly exposed to water even using 
with the supplied splash-proof cover.
• When batteries are left installed in the megaphone for extended 
periods of time, be sure to check them periodically for charge 
and leakage. 
• Do not use the unit for extended periods of time with a distorted 
sound output. This could cause the inner parts to become hot 
and possibly result in unit failure.
• Noise may be produced when a mobile phone is used near the 
unit. However, this is not a failure. Use the mobile phone as far 
as possible from the unit.
• Use a tightly wrung-out damp cloth to clean the unit. If the unit 
becomes extremely dirty, use a cloth moistened in a neutral 
detergent and tightly wrung-out. Never use volatile liquids such 
as benzene, thinner, or alcohol to clean the unit, as these may 
deform or discolor its case.
ER-2230W 
ER-2930W
MEGAPHONE 
WIRELESS MEGAPHONE
INSTRUCTION MANUAL
Thank you for purchasing TOA's Megaphones. 
Please carefully follow the instructions in this manual to ensure long, trouble-free use of your equipment.
Traceability Information for Europe (EMC directive 2004/108/EC)
Manufacturer:
TOA Corporation 
7-2-1, Minatojima Nakamachi, Chuo-ku, Kobe, Hyogo, Japan
Authorized representative:
TOA Electronics Europe GmbH 
Suederstrasse 282, 20537 Hamburg,Germany