Selcom Security would like to present You a long-awaited new Ceiling Microphone Jammer - SEL ULTRA SPEAKER
• High-quality ultrasonic transducers controlled by a microprocessor;
• Easy to control: turn on/off via presence of power in the power supply line;
• RC can switch jamming off/on;
• Quiet operation – does not emit an audible and troublesome sound;
• Easy mounting spring brackets.