Message in a Speaker MP3Message in a Speaker BackIn the box

Message In A Speaker (MIAS) v2


PIR activated speaker with in-built audio player.


Product Description

Product in Use

View the MIAS range in use here

What is Message in a Speaker?

Message in a Speaker is our unique, space and cable saving audio playback device which is normally triggered by movement but does have a continuous play mode. Able to hold up to 99 tracks, the device offers continuous, sequential or sequential activation over a background track. Constructed using a ‘JBL’ speaker, you can be sure of the high quality audio the MIAS provides. It is the original of our MIAS range and offers the highest quality audio.

How Does it Work?

A PIR (Passive Infrared) movement sensor is mounted behind the grille of the speaker which, when activated, triggers the playback of mp3 audio tracks stored on a MicroSD card held in the back of the case. The Speaker comes with a time delay option which can be altered as required to prevent repetition and clear distinction between different messages. Volume can be adjusted via the control provided on the rear panel whilst the playmode of the MIAS is determined via an easily programmed .txt file located on the MicroSD card.

Play Mode

  • Continuous – All files play on a continuous loop without PIR trigger
  • Once – When triggered all files play once then await another trigger
  • Sequential – One file is played when triggererd, next trigger will activate the next file
  • Background – One track plays on loop as background audio, when triggered the other tracks play sequentially

Colour Options

  • Black
  • Silver

How is it Fitted?

The Message in a Speaker is supplied with a wall/ceiling bracket and security cable, though it can also be left free standing.

For further information see the MIAS Manual.

Additional information

Weight 2 kg
Dimensions 135 x 145 x 225 mm
Message storage medium

1 *Micro SD Card

Maximum number of messages


Message Encoding Format


Power on load time

30 seconds

Audio output


Driver Bass/midrange


Drivers Tweeter

12mm Titanium Laminate

Frequency Response

20Hz – 20Khz

Power Handling

200W – 50W



Nominal Impedance


Power Supply

External 9 to 16V DC (12V nominal / 1000mA)

Power Supply Connector

1.3mm Inner=V+, Outer=0V

Operating Voltage

110 – 240V AC 50/60Hz Indoor Use Only


PSU Connector. SD Card inserted Label Side Down. DO NOT Connect an external amplifier into the input located on the rear. You can connect a second speaker to the input located on the rear. Not less than 8Ω.


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