Requires A AC Power Supply ACA-U UNIT (770310)

Nec Full Duplex Speakerphone Adapter HFU-U (WH) UNIT (770200) with AC Power Supply ACA-U UNIT (770310) for the Nec Neax 2000 / Neax 2400 Dterm Series E & Electra Elite Product Families. This unit is nstalled beneath the Digital Telephone and adds Full-Duplex capability to the Speakerphone. Following is a list of the Digital Telephone that is compatible with this adapter.

DTU-8-1 (WH) TEL 

DTP-8-1 (WH) TEL

DTU-16-1 (WH) TEL

DTU-16D-1/2 (WH) TEL

DTP-16D-1 (WH) TEL

DTU-32-1 (WH) TEL

DTU-32D-1/2 (WH) TEL

DTP-32D-1 (WH) TEL

It will also work with the black telephones; however, the color of the module is white.