TOA Hands-Free Megaphones

ER-1000 Personal PA System



The ER-1000 is a compact, lightweight, hands-free portable public address system with a rated power output of 6 W (9 V DC when used with six AA-type batteries). The system can be wrapped snugly around the waist and using the supplied headset microphone allows both hands to remain free, making it ideal for such applications as conducting factory tours, directing traffic, instructing in sports facilities, and security-and-safety-related applications.  

(*1) 0 dB = 1 V
Power SourceAlkaline battery (LR6): 6 pieces (9 V DC) or 4 pieces(*2) (6 V DC)
Rechargeable nickel metal hydride (Ni-MH) battery (HR15/51): 6 pieces (7.2 V DC) or
4 pieces(*2) (4.8 V DC)
Black manganese battery (R6PU): 6 pieces (9 V DC) or 4 pieces(*2) (6 V DC)
Output6 W (rated) and 10 W (max) when 6 AA batteries (9 V DC) are used.
3 W (rated) and 4 W (max) when 4 AA batteries(*2) (6 V DC) are used.
Battery LifeVoice operation(*3): Approx. 8 hours (when 6 or 4(*2) alkaline batteries are used)
AUX stereo input operation (music reproduction)(*4):
Approx. 4.5 hours (when 6 or 4(*2) alkaline batteries are used)
Approx. 5.5 hours (when 6 or 4(*2) Ni-MH batteries are used)
Approx. 3 hours (when 6 or 4(*2) black manganese batteries are used)
Audible Range(*5)Voice operation: Approx. 80 m (87.49 yd) (when 6 alkaline batteries or Ni-MH batteries
are used)
Approx. 40 m (43.74 yd) (when 4(*2) alkaline batteries or Ni-MH batteries are used)
Note: The audible range when black manganese batteries are used is approximately
80 % of each of the above mentioned distances.
Frequency Response300 Hz – 14 kHz (deviation: -26 dB)
Headset MicrophoneEar-on type, electret condenser microphone,
sensitivity: -47 dB (0 dB =1 V/1 Pa, 1 kHz)
InputMIC: -30 dB(*1), 3 kΩ, φ3.5 (0.14″) monaural mini-jack, phantom power supply
AUX(*6): -10 dB(*1), 2 kΩ,
φ3.5 (0.14″) stereo mini-jack (supporting monaural applications(*7))
Belt Length55 – 120(*8) cm (1.80 – 3.94(*8) ft)
90 – 160(*9) cm (2.95 – 5.25(*9) ft) (when wearing a extension belt (accessory))
Operating Temperature0 ℃ to +40 ℃ (32 ゜F to 104 ゜F)
FinishFront case: ABS resin, light grayish purple
Rear case: ABS resin, dark grayish purple
Grille: Surface-treated steel plate, dark grayish purple, paint
Belt: Elastic rubber, black
Dimensions133 (W) × 96 (H) × 222 (D) mm (5.24″ × 3.78″ × 8.74″) (belt excluded)
WeightMain PA unit (belt included, batteries excluded): 480 g (1.06 lb)
Headset microphone: 50 g (0.11 lb)
Extension belt: 40 g (1.41 oz)
AccessoryHeadset microphone (with headband and wind screen) …1,
Belt (attached to the main PA unit) …1, Extension belt …1, Battery spacer …2

ER-604W Mega Talk


The ER-604W is a compact, lightweight shoulder-type megaphone with whistle signal. It’s close-talking microphone has a handy-to-operate volume control and press-to-talk switch. External microphone inputs on the unit’s rear panel can accept an optional microphone or a headset microphone for hands-free use. In addition, an AUX (auxiliary) input can accept a CD, MD, or cassette player.  

* 0 dB = 1 V
Power SourceR6 battery × 8 (12 V DC)
12 V DC/0.8 A or more (AC adapter or DC power supply unit usable)
Rated Output6 W
Maximum Output10 W
Battery LifeVoice: Approx. 10 hours (R6P manganese dioxide battery use)
Whistle: Approx. 30 minutes (continuous use)
Audible RangeVoice: 160 m (under noise level of 55 dB)
Whistle: 160 m (under noise level of 55 dB)
MicrophoneClose-talking type, press-to-talk switch, volume control
Fixed to the microphone hanger on the unit’s top panel
SignalWhistle, push switch activation
InputMIC 1: -40 dB*, 1.5 kΩ, φ6.3 phone jack
MIC 2: -18 dB*, 3 kΩ, φ3.5 mini jack, phantom powering
AUX (auxiliary): -12 dB*, 18 kΩ, φ3.5 mini jack
External power supply: 12 V DC
Note: MIC1, 2, and AUX inputs can be used at the same time. However, their individual
volume cannot be adjusted as the unit’s volume control is common to those inputs.
Other FunctionVoice switch (functions to activate the unit with external input signals, and to make
the unit in stand-by status with no external signal.)
Battery check
Operating Temperature-10 ℃ to +40 ℃
FinishBody, microphone: ABS resin, off-white
Shoulder pad, belt: Black
Dimensions102 (W) × 258 (H) × 216 (D) mm (excluding shoulder belt)
Weight1.6 kg (without batteries)
Accessoryφ3.5 mini plug…1, External power supply cord (1 m)…1
OptionHeadset microphone: WH-4000A, WH-4000H
Dynamic microphone: DM series
Speaker stand: ST-16A