F-19 Anti Recorder Microphone Ultrasound Wave Generator Stops Phone Recording Listening Devices Sony WRT Massive Sound

Massive Sound

📍 GPS Tracking Parameters

100 hours of continuous recording and 500 days of standby)

Lemo 3 pin and Locking 4 pin mini XLR Shure body pack transmitters

the unit provides 2 to 4 hours of continuous operation

F-19 Anti Recorder Microphone Ultrasound Wave Generator Stops Phone Recording Listening Devices Sony WRT Massive SoundThe F 19 disrupts audio listening and recording devices by emitting inaudible ultrasonic waves. These waves saturate the diaphragms of nearby microphones, making any recorded audio sound like noisy static. Compact, portable unit intended for privacy protection in confidential settings like business meetings, legal consultations, and private residences. Unlike audible "white noise" generators, it operates silently to human hearing while effectively