Close this search box.


Hearing & Augmentation System

The HDi Acoustic Audio System

The HDi Acoustic Audio System is a wonderful blend of technology, features, ease-of-use, and convenience. HDi Acoustic is available in stand-alone configurations for classrooms and meeting rooms with existing display technology.



The Hub is “where the magic happens.” The HDi Acoustic Hub contains a 60W Class D digital power amplifier, an ALD transmitter, a network LAN interface, and a wireless receiver that simultaneously supports up to four microphones, in any combination of HDi Acoustic Presenter Microphones and HDi Acoustic Audience Microphones.


Audience Microphone

The HDi Acoustic Audience Microphone fits comfortably on a hand and has a non-slip coating on the sides and back.

HDi Acoustic Audience Mic 2

Presenter Microphone

Overview The HDi Acoustic Presenter Microphone is small enough to fit in a shirt pocket and lightweight enough to be comfortably worn on the included lanyard.

Battery life is 10 hours from a full charge. A one-hour Quick-Charge provides 4 hours use.