PANASONIC KX-TG255S3 2.4GHz GigaRange Extreme SST Cordless Telephone Extreme SST offers twice the range of 900MHz phones Dual high power Diversity Antenna System permits increased sensitivity and virtually eliminates echo and delay Call Waiting Caller ID (with optional phone company service) uses handset's multifunction, backlit 3-line LCD display 50-Station Caller ID Memory/Dialer and 50 Name/Number memory Lighted keypad