Device is an effective jamming device, producing a complex jamming signal in the ultrasonic band above the point of human hearing. A system of high-quality ultrasonic transducers controlled by a microprocessor that achieves the best possible jamming efficiency and makes any recorded conversation impossible to playback. Due to jammers 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.
