ClearDigital Power delivers maximum clarity & background noise suppression 50 dB amplification with full range tone control Full duplex speakerphone in handset and base DECT 6.0 system expandable up to four (4) additional handsets (sold seperately) 95 dB adjustable base ringer and 85 dB adjustable handset ringer Bright visual ringer on base and handset Talking caller ID - speaks name and number of caller (If you have entered a number into the phonebook and have recorded a voice entry, this recording will be announced) Talking phonebook – record a name for each phonebook entry Talking review – when reviewing the caller ID list, phonebook, or redial list, the information will be spoken Talking keypad – number verification for pre-dialing (speaks back through speakerphone) – base and handset Name/Number Caller ID* (20 on base and 40 on handset) 8 one-touch photo memory dial buttons in base 1 one-touch emergency dial button in base 4 one-touch memory dial buttons in handset Jack for optional vibrating pad offers silent ring signaling (for best results, use a ClearSounds shaker accessory) 6-level ringer volume control and 10 adjustable ring tones Vibrating handset ringer Base supports 4 languages: English French Spanish German Handset supports 7 languages: English French Spanish German Italian Turkish Portuguese 2.5mm headset jack & 3.5mm neckloop jack Big button easy-to-read backlit keypad Last number redial & redial list Touch-tone/pulse dialing Hearing aid compatible Size: Base - 9.25" H x 6" W x 2.25" D Handset - 6.5" H x 2.25" W x 1.25" D Color: Black 1-year warranty