Protect Private Conversations
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
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
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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 20 hour battery life (full power, no transducers); 9 hours (full power, 2 transducers only)
- 4W external speaker output
- Line 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
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 20 h with no transducers @ full volume, up to 9 h with 2 transducers only at full volume
Typical charge time: 8.5 h
AUDIO OUTPUT
Internal speaker and push terminal line out
Peak output power: 4 W
Line out amplitude: 1 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
Downloads
| PMK-2 Brochure (1 MB) | |
| PMK-2 User Manual (2 MB) |
Included Content
The PMK-2 is a deployable set of 2 VMGs Voice Masking Generators the can be installed strategically in a target area requiring audio security. The PMK-8 includes:
- 2 VMGs with built-in speaker
- 4 Transducers/emitters
- 2 speaker cable sets (3ft/.9m lengths per transducer)
- Hard shell case
- Mounting strips