DECT 6.0 (Digital Enhanced Cordless Telecommunications) technology lets you move freely around your home with long range and amazingly clear sound. It also assures greater protection against eavesdropping for all your calls. Operating in the 1.9GHz frequency range, your phone will not conflict with other wireless devices such as computer routers, wireless keyboards, microwave ovens and other common household devices.Now you can program each handset to ring - or not - at your discretion. Before going to sleep, simply set the bedside handset to Night Mode so that it won't ring in your bedroom. In the meantime, the handset in the den will still ring when that important call comes in without disturbing the person who's sleeping.Now you don't have to be holding the phone to see who's calling. Using text-to-speech technology, the Caller ID information is announced between rings. Panasonic's KX-TG9300 series DECT phones also boast a talking alarm clock that will tell you when it's time for lunch, and a talking battery alert that politely tells you when your battery is low with a "please charge phone" reminder.Store the Caller ID info of any and all unwanted callers into your phone's Call Block list so that you can eliminate future pesky calls. After the information is stored, those unwanted callers will receive a busy signal when they call you again.Don't miss important calls when the ringer is off. The Light-Up Indicator with Ringer Alert at the base of the antenna will flash quickly to show that you have an incoming call, and it will flash slowly to let you know you have a new message. So turn off the ringer and never miss a call.