The Clarity Amplified Trimline Phone, model C200, is an amplified telephone designed for use by individuals who are hard of hearing. This phone amplifies incoming sound up to 26 decibels (dB) and features Clarity Power technology which makes words louder, clearer and easy to understand. It also features a bright visual ring indicator on the handset, loud ringer volume, and large, backlit keypad. The phone is hearing aid compatible and wall mountable. WARRANTY: One year limited warranty.