The Serene RingMaster Cell-Telephone Ringer and Flasher alerts you to the ringing of your cellular or regular telephone with an adjustable super loud volume (up to 95dB) ringer. Customize the ring tone to suit your individual hearing abilities. Features a bright visible ringer for visual alert of ringing phone.

Bed-shaker ready (shaker sold separately) to alert even the deepest sleepers. Desk or wall mountable. AC adapter (included) with battery back-up (batteries not included.) One-year warranty.