The Clear Sounds CSC1000 amplified corded telephone is a single line phone with up to 95dB visual ringer. It features a large backlit LCD display that tilts forward and backward. The CSC1000 is also equipped amplified digital answering machine. Other features include large keypad buttons for easy dialing, up to 15dB amplified speakerphone, boost button, and built-in vibrating accessory port. CSC1000 Features: Amplified Big Button Corded Phone Digital Clarity Power Technology -Increases Volume for Soft Sounds -Decreases Volume for Loud Sounds Amplified Volume - Up To 55dB Amplified Ringer Digital Answering System Hearing Aid Compatible Full Duplex Quality SpeakerPhone One-Touch Emergency Button Large Backlit LCD Display Backlit Keypad Dial Display New Call Indicator Speed Dial Message Waiting Indicator Missed Call Indicator Adjustable Ringtones Adjustable Speakerphone / Handset Volume Control Extra Loud Adjustable Ringer Volume Bright Visual Ringer Wall Mountable/Mount Included One-Touch Speed Dial Last Number Redial Voicemail Key