Serene InnovationsWired Bed Shaker for Cell Phone Ring Amplifier & Flasher and Home Alert System

Wired Bed Shaker for Serene Innovations External Ringer for Cell Phone and Home Alert System

Serene Innovations Cell Phone Amplifier & Flash Ringer – Cell Phone Call Alert, Home Phone, & SMS Detection with LED Flasher – Works with Apple & Android Phones – Adaptive Telephone Ring Amplifier .