KX - NT680
The KX-NT680 is an executive IP telephone featuring a 4.3 inch backlit LCD color display with 48 self-labeling flexible keys and built-in Bluetooth.
KX - NT560
Designed for the busy executive, the KX-NT560 adds a large scrolling, backlit LCD screen and support for 32 self-labeling keys, and Bluetooth.
KX - NT505
The KX-NT505 is an optional 48-key direct station selection (DSS) module for pre-programmable one-touch number dialing. (for use with the KX-NT553 and KX-NT556)