ClearSounds CSWCSC600 Ultraclear Amplified Landline Speakerphone with Talking Features and Caller ID - White MAXIMUM CALL CLARITY - ClearDigital Power delivers maximum clarity & background noise suppression EXTRA LOUD RINGER - 104 dB adjustable extra loud ringer and bright visual ringer CALLER ID - Large backlit angle-adjusted LCD display with Talking Caller ID, 99 name/number history, call waiting capable, and voicemail waiting indicator POWER SAVING - designed to consume 50% less power than other amplified phones POWER SAVING - designed to consume 50% less power than other amplified phones