Indicators with acoustic signals

Devices that indicate with sound that something is happening in the place where the transmitter is. They can transform, e.g., visual signal to audible signal or they can increase the volume of a normal device. Included are, e.g., rain indicators and computer-signal indicators.


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Doro Hear Plus 322wra

Doro Hear Plus 322wra

Extra loud ring signal
Flashing light as ring indicator
Adjustable ringtone volume

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