High-contrast Black Text On Extra-large White Display Big Buttons Talking Digits Visual Ringer Audio Assist Temporarily Increases Volume To Make Speech Easier To Understand Caller Id Announce Push-to-talk 50 Name & Number Directory Visual Ringer On Base & Handset Expandable Up To 12 Handsets Handset Speakerphone 14 Min Record Time Message Retrieval From Handset Backlit Message Counter Message Time & Date Stamp Single-handset System