The Clarity 40dB Amplified Cordless Phone with answering machine amplifies incoming sound up to 40 decibels, which is 20 times louder than a standard home phone. It offers a vision solution featuring the largest keypad of any cordless phone, high-contrast numbers, a backlit keypad that is easy to see at night, bright visual ringer and a large font CID display. For convenience, the phone offers a digital answering machine, where messages can be listened to through the handset or speakerphone at up to 40 decibels, plus it allows for up to 5 handsets. DECT 6.0 interference-free technology Clearly amplifies incoming sound up to 40dB Adjustable tone control Digital answering machine 4 tone settings to customize listening experience