ULTRAVOX-TU
Short description
ULTRAVOX-TU (“tube”) is a professional device for protecting conversations from recording on voice recorders, smartphones, and hidden microphones, made in a camouflaged “tube” form factor. ULTRAVOX-TU supports universal mounting options: on dark ceilings, grille-type ceilings, in the ceiling void, on walls, under a table or on a table. Recording Blocker.
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Purpose
ULTRAVOX-TU belongs to the class of stationary devices designed to protect conversations from being recorded by voice recorders, smartphones, and hidden microphones.
The device operates in a completely silent mode and provides an increased suppression range thanks to a special signal generation technology.
ULTRAVOX-TU supports universal installation options: on dark ceilings, grid-type “grilyato” ceilings, in the plenum space, on walls, under a table, or on a table. For integration into premium interiors, decorative brackets made of precious wood are available for tabletop installation (optional).
The device effectively counteracts unauthorized recording using:
- mobile, stationary, and radio-frequency recording devices
- professional audio recording equipment
- hidden and remote microphones
- mobile phones
Operating Principle
Generation of ultrasonic interference
The device generates a complex signal in the ultrasonic range that is not perceived by the human ear.
24 ultrasonic emitters, positioned on three sides, generate noise interference.
Effect on microphones
The interference distorts the signal received by microphones, making speech recordings unintelligible or completely impossible. The interference acts directly on the microphone diaphragm, creating a “speech choir” effect that makes recordings impossible to restore.
Limitations
Ultrasound does not pass through solid obstacles (walls, furniture, partitions), therefore for effective protection the device must be placed within the protected area.
Specifications
Design
stationary — on / under table, ceiling, wall
Number of emitters
24 pcs.
Suppression range
8 m
Sound pressure level
128 dB
Interference emission angle
110°
Interference frequency range
24–26 kHz
Type of emitted interference
complex, time-varying
Suppression signal generator diagnostics
available
Emitter diagnostics
per channel
Power supply voltage
12 V
Current consumption
max. 1.5 A
Built-in battery
not included
Operating temperature range
+5°C … +40°C
Relative humidity
max. 85%
Dimensions
280 × 96 mm
Weight
max. 2 kg
