Designed for the KX-TG5200M-series phone systems, the Panasonic KX-TGA520M phone enables you to talk for long hours with your friends, without any noise interference. This Panasonic digital phone features the FHSS technology that ensures wide-range crystal clear voice clarity, with safety. Supporting the caller ID/call waiting options, this Panasonic expandable handset displays the caller’s number, even if your phone is busy on another call. The talking caller ID of this Panasonic digital phone announces the caller’s number, so that you don’t have to go near the base unit to check the number. The built-in speakerphone of the Panasonic KX-TGA520M allows you to talk comfortably without hands. The lighted antenna of this Panasonic expandable handset starts blinking if you receive any new message or call.