DECT 6.0 technology; 4 tone settings to customize listening experience; Loud & clear handset speakerphone; Big buttons with large numerals; 10 speed-dial buttons; 100-name & number phone book; 20 last-number redial memory; Easy-to-read Caller ID display; Large backlit keypad ; Backlit keypad & Caller ID display act as super-bright visual ringers; 10 loud & clear melody ringtones with 6 levels of volume; Hearing aid compatible; Expandable up to 5 handsets; 1-year warranty; Includes base, adapter, belt clip & 2.5mm headset jack;