The ER-1000A-BT is a wearable, easy-to-operate, personal PA system attached to a waistband, with the capability of delivering both clear and powerful sound.

The lightweight body of the main unit, features a slight curvature in its design, and fits perfectly on your waist to allow natural movement that minimizes unit disruption. This product is suited for various situations such as guided tours, sport classes, directing traffic and other security-and-safety-related applications, as well as attracting prospective customers at shows and storefronts.

TOA Education Solutions


Power Source

Alkaline battery (LR6): 6 pieces (9 V DC) or 4 pieces (*1) (6 V DC)

Rechargeable nickel metal hydride (NiMH) battery (HR15/51):

6 pieces (7.2 V DC) or 4 pieces (*1) (4.8 V DC)


6W (rated) and 10W (max) when 6 AA batteries (9 V DC) are used. 

3W (rated) and 4W (max) when 4 AA batteries (*1) (6 V DC) are used.

Audible Range (*2)

Voice operation:

Approx. 100m or 320ft (when 6 alkaline batteries or NiMH batteries are used) 

Approx. 80m or 260ft (when 4 (*1) alkaline batteries or NiMH batteries are used)

Battery Life

Voice operation (*3)

Approx. 8 hours (when 6 or 4 (*1) alkaline batteries are used) 

Approx. 7 hours (when 6 or 4 (*1) NiMH batteries are used) 

AUX stereo input operation (music reproduction)(*4):

Approx. 9 hours (when 6 or 4(*1) alkaline batteries are used) 

Approx. 9 hours (when 6 or 4(*1) NiMH batteries are used)

Frequency Response

300Hz - 14kHz (deviation: -26dB)

Headset Microphone

Ear-on type, electret condenser microphone, 

sensitivity: -47dB (0dB=1 V/1 Pa, 1kHz), cord length: Um (4.27ft), 3.5mm ("mini-plug (monaural), with headband and windscreen.


MIC: -30dB(*5), 3kΩ, 3.5mm ("monaural mini-jack, phantom 

power supply

AUX(*6): -10 dB(*5), 2kΩ, 3.5mm (") stereo mini-jack (supporting monaural applications*⁷)

Communication Method

Bluetooth Ver.4.2

Output Power

Bluetooth Class 2

Operating Range

10 m (32.81 ft)





Maximum Belt Length

55 - 120cm(*8) (1.8 - 3.94ft(*8))

Operating Temperature

0 to 40ºC (32ºF to 104ºF)


Front case: ABS resin, black 

Rear case: ABS resin, gray 

Grille: Surface-treated steel plate, black, paint 

Belt: Elastic rubber, black


133 (w) X 96 (h) X 222 (d) mm (belt excluded) 

(5.24" X 3.78" X 8.74")


Main PA unit (belt included, batteries excluded): 480g (1.06lb) Headset microphone: 50g (0.11lb)


Headset microphone (with headband and wind screen) x1 

Belt (attached to the main PA unit) x1, Battery spacer x2


(*1) When the supplied battery spacers are used.

(*2) Transmission range is measured on a quiet street with Personal PA System loaded with fresh batteries.

Range varies depending on surrounding environmental conditions, such as battery consumption, ambient noise levels, wind direction and obstacles. Reference standard: JEITA (Japan Electronics and Information Technology Industries Association) TT-4501D

(*3) Battery life during voice output usage represents the period of time when the Personal PA is continuously, used with the volume control set to a position that does not cause feedback. 

Reference standard: JEITA (Japan Electronics and Information Technology Industries Association) TT-4501D

(*4) Battery life during AUX stereo input represents a value actually measures when music is continuously reproduced with a commercial audio player connected to the auxiliary (AUX) input terminal. It varies depending on the connected external equipment’s volume output or the type of music source. 

(*5) 0dB = 1V 

(*6) Adjust the volume of the auxiliary (AUX) input at the connected external device. 

(*7) Volume during monaural operation is smaller than during stereo operation. 

(*8) THE 120cm (3.94ft) length is when the Belt is stretched out to its maximum extent. When worn, consider a Belt length of 100 cm (3.28ft) (of waist size when clothes are worn) as a rule-of-thumb standard.

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