The Ameriphone SR200 Telephone Ringer, by Clarity, is ideal for use in the home, the office or while traveling so you will never miss a call.- Features:- Super loud telephone ringer (95+ decibels)- Visual ring indicator- Adjustable ring volume- Adjustable ring tone control (250-1200Hz)- Choice of four distinct ring patterns- Dual modular phone jacks for easy connection to a standard analog telephone
