











360º Full Room Coverage up to 8 Square metres
Blocks Smartphones, Listening Devices and Recorders
Long-Lasting Rechargeable Battery or AC Power
Advanced Ultrasonic Microphone Jammer Interference
The Most Powerful Sound Wave Generator Available
Low and High Frequency Ultrasonic Acoustic Speaker
Free UK Shipping
30 days Easy Returns
High-Power Ultrasonic Sound Wave Generator Protection (8m Range)
The F12 360° Anti-Recording Jammer is a professional-grade security device designed to safeguard sensitive conversations against unauthorised audio surveillance. Utilising an advanced ultrasonic array, it creates a silent acoustic shield that renders microphones—including those in smartphones and digital recorders—incapable of capturing intelligible speech.
Key Features & Technical Specifications
360° Comprehensive Coverage:
Equipped with 66 ultrasonic transmitting heads, the device provides full-perimeter protection. It effectively intercepts mobile phone recordings, digital voice recorders, and video-based audio capture from all angles.
Ultrasonic Low-Frequency Interception:
The F12 uses a sophisticated mix of high and low-frequency ultrasonic waves. This technology targets the microphone's diaphragm directly, creating a "bass" masking effect. The interception is non-recoverable, meaning even advanced forensic audio software cannot reconstruct the conversation.
Extended Blocking Range:
Offers a powerful suppression radius of up to 8 metres, making it suitable for large offices and executive boardrooms.
Discreet Operation:
Designed to work below the threshold of human hearing, the device operates silently, allowing for natural communication without alerting others that a counter-surveillance measure is active.
High-Capacity Battery & Endurance:
Powered by a 9800mAh battery, the unit provides 2 to 4 hours of continuous operation. Integrated four-stage LED indicator lights allow users to monitor remaining power at a glance.
Applications
The F12 is engineered for environments where information security is paramount:
Corporate & Legal: Confidential boardrooms, business negotiations, and private consultation rooms.
Research & Development: Protection of intellectual property and trade secrets.
Government & Education: Secure meeting spaces and examination halls.
Mobile Security: Safe use within automobiles for private transit discussions.
Important Compatibility Note
Device Limitation: Please be advised that this product is not as effective with iPhone 15 series or newer versions. Due to the specific microphone hardware and filtering technology used in these newer Apple devices, the ultrasonic suppression is less effective.
Summary Table
| Feature | Specification |
| Blocking Radius | Up to 8 Meters |
| Coverage Angle | 360° All-around |
| Transmitter Count | 66 Ultrasonic Heads |
| Battery Capacity | 9800mAh |
| Operating Time | 2–4 Hours |
| Technology | Ultrasonic Low-Frequency Mixing |
Orders are processed and shipped promptly. Returns accepted within 30 days if unused and in original condition. Faulty items can be returned within 60 days for exchange or refund. All products include a 12-month manufacturer warranty.


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