- Amplifies incoming sound up to 40 decibels - Four (4) tone settings to customize your listening experience - Amplified digital answering machine making it easier to listen to messages - Large high contrast CID display - Extra loud and clear speakerphone for hands-free conversations - Large keypad with high contrast numbers - Five (5) speed dial buttons to store important numbers - Ten (10) loud ringer melodies with six (6) levels of volume - CID display lights up as super bright visual ringer - Expandable up to four (4) cordless handsets (model D703HS)