The KX-DT300 series of business telephones features outstanding voice quality and a range of productivity-boosting features, including support for Bluetooth-enabled wireless headsets on two of the four new models. Sporting a sleek "double-tilt" design with a base unit and display that can be adjusted separately to match any work environment, the new phones integrate easily with Panasonic's different telephone platforms. Features: â Display (LCD) Lines/Characters: 3/24 â LCD Backlit: Yes â Headset Jack: Yes â Message Waiting LED: Yes â Speakerphone: DigitalDuplex â Peronsal Speed Dial: 100 â Alphanumeric Directory Search: Yes â Call Log: 100 â Function Button: 24 â Soft Key: 4 â Interface for CTI (3rd Party): USB â Add-on Key Module / DSS Console: Yes / Yes â Bluetooth Module (Headset): Yes â Extra Device Port (for analog): Yes â Navigation Key: Yes â Ringer Tone/Melody: 30 â Wall Mounting: Yes