Minimizing background noises Eliminating feedback and distortion Managing soft/loud sounds to produce clarity Amplifying incoming sound up to 30 decibels or 6 times louder than a standard home phone Offering four 4 tone settings to customize your listening experience Utilizing DECT 6.0 technology for clear, interference free communication Easy to see high contrast numbers Contoured keys with soft touch material for comfort Backlit keypad that is easy to see at night Large font and high contrast caller ID screen Extra loud and clear speakerphone for hands free conversations Ten 10 speed dial buttons to store important numbers One hundred 100 name and number phonebook with ten 10 memory buttons Twenty 20 Last Number Redial memory Easy to hold lightweight and ergonomic handset Belt Clip for hands free mobility Hear It Ring Clarity ringer has 10 loud and clear melodies plus six 6 levels of volume. Expandable up to five 5 handsets model D702HS Both the large keypad and CID display light up as a super bright visual ringer Direct connection to assistive listening devices or headset 2.5mm Both a U.S. and Canadian based team of fifteen has been serving the needs of seniors for over 40 years understanding and meeting their specific needs Over 10 million seniors served since 1969, Clarity helps keep seniors connected to family, friends and their community.