The new Radio Audio Channel Enhancement from TCI corrects a longtime deficiency of dual Comms systems. Currently, one headset ear equals one channel and the other ear is a different channel. This patent pending technology listens for audio null on a channel and turns the headset into a stereo system on the active channel.
Additionally, TCI has introduced the Liberator III R.4 Utility Push to Talk. As you can see, it takes up much less space than the previous version as well as being lighter.