Silent Call Signature Series Sound Monitor Transmitter

Summary

AI-generated from vendor-published content · April 26, 2026

This device picks up sounds in a room — a baby crying, a knock at the door, or an alarm going off — and wirelessly transmits a signal to a compatible receiver elsewhere in the home. It's designed for people who are deaf or hard of hearing and can't rely on hearing sounds from another room or floor. This is only the transmitter half of the system; you must also purchase a Silent Call Signature Series receiver (sold separately) to get any notification — the transmitter alone does nothing visible or tactile. The 2,000-foot range is generous for larger homes, but keep in mind this only detects sounds lasting at least 3/4 of a second, so very brief noises may not trigger it.

What Setup Looks Like

• Out of the box
  Install the included AA batteries and position the transmitter near the sound source you want to monitor.
• With a guide
  
  1. Purchase a compatible Silent Call Signature Series receiver separately — the transmitter cannot notify you on its own.
  2. Pair the transmitter to the receiver following the pairing steps in the included documentation.
  3. Test by making a sustained sound near the transmitter and confirming the receiver alerts — allow 15–30 minutes for initial setup. See manufacturer support resources for detailed instructions.

Where to Get It

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