$37.46 (as of 29/03/2018 00:41 PDT details )
Features:
- Automatically keeps you alerted when Sonic Alert transmitters are set off
- Volume and tone are easily adjustable
- Works with the Sonic Siren Telephone Ring, Baby Cry, and all Doorbell Signalers
$37.46 (as of 29/03/2018 00:41 PDT details )
Features: