Headset Interface Units

Inline Nexus PTT

In-Line Nexus PTT

This latest design Tactical In-Line Nexus PTT provides a rugged PTT, rear clothing clip and integral 4 pole Nexus socket and wired connection to your radio. Options are available for an 3.5mm socket wired for connection of a remote PTT or an Rx only earpiece.

In addition there is also the option for a wireless PTT.



Enhanced HIU-3

The Enhanced Headset Interface Unit V.3 (EHIU-3) features an integral 4 Pole Nexus socket for connection of a noise cancelling headset, on-board noise cancelling microphone, a facility to plug in a simple receive only earpiece, a local volume control and PTT button as well as providing connectivity to a Wireless PTT.

EHIU-3 also supports the use of Tones both locally and via the wireless PTT option.



• PTT/Tone
• Volume control
• Integral microphone
• 3.5/2.5mm Jack socket options
• Nexus Socket & Jack socket dust caps
• Integral U94 Nexus 4 Pole Socket
• Molle compatible clothing clip
• Compatible with AMP/Peltor and
a range of tactical headsets
• Compatible withPicatinny Mount
Wireless PTT/Tone

Tactical Nexus In-Line PTT-vol

Nexus HIU

Where a direct connection for a Nexus terminated headset is required the Nexus HIU offers rugged flexibility.


• PTT/Tone
• Volume control
• Integral microphone
• Integral Nexus Socket
• Compatible with AMP/Peltor and  a range of tactical headsets
• Compatible with Picatinny Mount Wireless PTT/Tone

Options available:

  • Single radio with PTT & volume control
  • Dual radio with PTTs
  • Molle compatible clothing clip
Dual-Radio-Tactical Nexus In-Line PTT-vol

Dual Radio Nexus Tactical HIU

The Nexus Tactical HIU allows direct connection of Peltor, Gentex or Tactical Headsets whilst adding the ability to
connect a second radio.

Alternative headsets can be connected via a latching connection, dual button wireless PTT compatibility ensures operational compliance.

Rugged Dual Radio HIU.

Rugged Dual Radio HIU

A dual radio device with latching headset connection, proven mil spec radio connectors and dual wireless PTT capability allow an operative to monitor Command and Control Communications and local immediate tactical co-ordination nets.

Sonic Communications Solutions Service

Headset Interface Units provide maximum operational flexibility for a radio user.

Allowing Headset or earpiece connection to one or two radios alongside remote or wireless PTT capability they remove the radio(s) from the operatives chest and allow it to be secured elsewhere on the body for comfort, security or optimum propagation reasons.

Rugged housings and efficient clothing attachment via clips or Klickfast studs place Headset Interface Units as
essential where mission critical flexibility is a must.

We can configure the most appropriate solution for any given requirement and scenario. From Ops Room to Public Order duties, when coupled with the correct choice of PTT unit, Sonic have the answer.  Contact our sales team for more information.