A 2025 report by the Privacy Security Forum revealed that over 72% of illicit audio recordings in corporate espionage were captured via high-sensitivity mics-many of which can pick up whispers from over 10 meters away. The ultrasonic jammer PJ-310 doesn’t just mask your voice-it makes your conversation vanish from the data stream entirely.
Unlike broad-spectrum white noise generators, PJ-310 is a directional ultrasonic microphone jammer that uses a precisely tuned 24-26 kHz frequency range to physically disrupt microphone diaphragms before sound ever becomes data. Think of it as pulling the plug on eavesdroppers – without touching their devices.
By 10 precision ultrasonic transmitters, the anti-eavesdropping device PJ-310 delivers an 80° directional acoustic cone (vertical + horizontal), targeting only the intended zone while leaving the rest of the environment untouched.
🔍 Tech Spotlight: Ultrasonic interference works by vibrating the microphone’s diaphragm at a frequency beyond human hearing, corrupting the signal at the very source. This makes it virtually impossible for even seismic or through-the-wall microphones to record clean audio.
Why professionals choose ultrasonic microphone jammer PJ-310:
- Matrix Protection: One unit effectively shields up to 4 m; for boardrooms or safehouses, a 2-4-unit sound wave matrix creates complete, no-dead-zone protection.
- Military-Grade Stealth: Instant ON/OFF via encrypted RFID remote control – no fumbling with buttons under pressure.
- Dust-Shielded Durability: High-precision filters on every emitter keep performance consistent in the field.
- Ultra-Portable: Just 400 g and compact enough to fit in a small pouch.
Technical Specs:
- Transmitters: 10
- Frequency Range: 24-26 kHz
- Coverage: 4 m effective radius per unit
- Battery Life: Up to 5 hours
- Weight: 400 g
- Dimensions: 110×110×45 mm
- Operating Temp: 0 – +50 °C
