FeaturesLarge illuminated LCD display4 direct dial keys - including dedicated SOS keySOS bracelet or pendant includedHearing aid compatibleAmplified ringer and receiver volumeThe is a large button phone SOS functions and Emergency bracelet.With a large LCD display, the Emporia KTF19-SOS Corded Phone with SOS Button and Emergency Bracelet provides the easy way to stay in touch. The amplified ringer and receiver volume, SOS key and 3 picture memories provide comfort and security. The SOS feature can be activated by the remote button, worn on the wrist or around the neck.Features like 4 Direct dial keys (including SOS) and calling line identification on the large illuminated LCD display make it easy to make calls and to keep track of who calls you. You can also dial with handset on hook, hands-free and the phone has power outage backup so you\'ll always be able to make that important call. The emergency call function activates an emergency call sequence, calling up-to 30 numbers on activation. It includes a voice prompt out going message and DTMF confirmation to avoid answer machine interaction. The bracelet can also be used to answer calls easily.Distance from the main phone for the bracelet to be effective:Indoors up to 10 mOutdoors up to 5 m