top of page
logo

Portable Masking Kit (PMK-2)

Protect Private Conversations

Efficiency

This kit provides a temporary audio security solution when you need to get in, set up voice masking security, and get out.

Usability

Easily permeates surface areas with Voice Masking noise to protect against structure bound audio threats.

Portability

The Portable Masking Kit, PMK-2 includes 2 Voice Masking Generator sets (unit, transducers, cables) in a small hard shell case for easy transport.

Features

  • Quick deployment – easy to configure/setup

  • Portable – packs in a small hard shell case

  • Protects against structure bound audio leakage

  • Compact – each small Voice Masking Generator powers 2 transducers

  • 4 speakers total (4 transducers, 2 internal VMG speakers)

  • Load custom voice recordings to match those speaking in the room

  • Up to 24 hour battery life

  • 4W external speaker output

  • EXT out

  • Rechargeable lithium-ion battery

  • Multiple mounting options

  • 32 GB memory for storing custom audio files

  • Selectable HVAC or scrambled speech/custom audio output

  • Adjustable output volume

The Portable Masking Kit (PMK-2) protects private conversations by injecting voice masking noise into structural surfaces, gaps, and free space, making conversations unintelligible to anyone outside the room.  PMK-2 includes 2 sets of Voice Masking Generators (2) and transducers (4 with cables) to defeat acoustic leakage and eavesdropping devices like:

  • Wired wall devices

  • Contact microphones

  • Hidden audio transmitters

  • Laser/reflections from windows

Applications

  • Hotel Rooms, offices, conference rooms

  • Technical Surveillance Countermeasures (TSCM)

  • Speech and conversation privacy

  • Eavesdropping prevention

  • Intelligence protection

  • Executive protection

Specifications

  • POWER

    • Unit wired power/charging/programming port: USB-C @ 5 V, 1 A
      Battery: 18.5 Wh Li-Ion
      Battery life: up to 36h with no transducers at full volume; up to 24h with 2 transducers and internal speaker at full volume (typical)
      Typical charge time: 8.5 h

  • AUDIO OUTPUT

    • Internal speaker and push terminal line out
      Peak output power: 4 W
      EXT out amplitude: 6.7 V pk-pk
      Audio frequency range: 100 Hz – 12 kHz
      Max SPL: 98 dB at 4 ft

  • MECHANICAL

    • Unit dimensions: 4.6 × 2.6 × 0.9 in / 12 × 6.5 × 2.3 cm
      Unit weight: 5.7 oz / 160 g
      Case dimensions: 11 × 10 × 5 in / 16 × 38 × 47 cm
      Case/contents weight: 5 lbs / 139 g

  • ENVIRONMENTAL

    • Battery charging temperature: 32 – 104°F / 0 to 45°C
      Storage temperature: -4-140°F / 20 to 60 °C
      Operating temperature: 14-104°F /-10 to 40 °C

01 / 05
pmk-2_case_open_front_vmg_trans.png
bottom of page