Built-in ultrasonic microphone jammer SEL324S Spot

SEL-324S "Spot" is a high-power and efficient microphone jamming device due to its thought-out design that includes high-quality directional ultrasonic transducer array that pushes a complex, tailor-made noise waveform on a frequency band that is below human hearing point, but right in the zone of common audio microphone bandwidth, applying a constant noise pressure on the microphone's membrane.

An array of 24 ultrasonic transducers in the "Spot" are installed in a thin (the height of the device is 40mm) drum-shaped ceiling spotlight case.

Due to SEL-324S ceiling mounting position, a multipath propagation effect is created, which reflects the generated noise from surfaces and items, further increasing the suppression area and efficiency.

Features:

• An array of 24 high-quality piezo-ceramic transducers, controlled by a microchip that automatically shifts the noise signal in time and frequency domains, achieving best possible jamming efficiency and rendering any actual speech signal on the microphone unintelligible.
• Special power supply: device draws power from the standard ceiling light DC wiring: 12V, and starts automatically whenever power is applied
• Easy to use control: can be turned on/off via presence of power in the power supply line,
• Optional wireless RF remote control (Please, send an explicit request for this option during your order).
• Easy mounting spring brackets.

SEL-324S "Spot" standard package contents:

• SEL-324S "Spot" jammer, white color finish;
• Power supply adapter for 12V DC, 2A;
• Owner's manual;
• Cardboard shipping box.