Uniden ELX500 5.8 GHz Accessory Flip-Phone Handset with Color LCD and Bluetooth Capability (Titanium) 5.8 GHz digital signal; full color LCD supports downloaded images For use with Uniden ELT series; also for select T8, CLX, and VoIP models Bluetooth enabled for wireless headsets and compatible base systems Recordable ringer tones; DirectLink 2-way radio, baby/room monitoring Caller ID/call waiting compatible, 100-call memory