This corded and cordless phone combination gives you a 40 decibel corded amplified phone and a 30 decibel cordless amplified phone in one easy package. The Clarity E814 base unit has an amplified digital answering machine and a high contrast caller ID screen for increased functionality. Other features for hard of hearing and low vision users include an extra loud speakerphone on the base, one touch speed dials, different ringer melodies with volume levels, and a large keypad with easy to read numbers. Expandable up to four cordless handsets total.