- NEC DSX 34 button backlit super display telephone- For use with the DSX 40 80 and 160- For use only with NEC DSX systems does not work independently- The DSX system’s most sophisticated telephone instrument- Features a large 9 line x 24 character backlit alphanumeric display with 12 Interactive Soft Keys for intuitive feature access- 10 Personal speed dial bin keys- 24 Programmablefeature keys- 12 Fixed function keys- Built-in speakerphone- Backlit keypad- Headset jack- Dual LEDs- Ring/message lamp (to show ringing Caller ID and voice mail messages)- Built-in wall mounting- Innovative two position angle adjustment- WhiteNEC1090031