Three 1-touch keys with auto emergency dialing function; Speakerphone; Talking Caller ID with 30 user-recordable memories; Message Waiting & Incoming Call Indicator (LED & icon); Talking dialer keys; 64 Caller ID memories; Last numbers review & redial; Hold with mute & extension release; Automatic call timer; Flash function; On-hook predial; Tone control; Speaker/ringer volume control; Rotary knob on base for headset volume control; 3-line backlit LCD display (14-digits number, 16-characters name); Supports 11 languages (Eng/Fr/Sp/It & more); 4 voice-prompt languages; Prerecorded voice prompts (SOS emergency message); Time display; Hearing aid compatible; Desktop & wall mountable; SOS emergency remote pendant with working distance up to 100ft; Requires 4 AA batteries for battery backup display; Includes 1 LR23 alkaline battery for pendant & AC adapter;