ULTRASOUND AUDIO BLOCKER

Ultrasonic audio blocker – Effective protection against eavesdropping microphones

Secure confidential conversations reliably: The ultrasonic audio blocker generates powerful interference signals in the ultrasonic range, which are not audible to the human ear. This effectively blocks all types of microphones – eavesdropping devices, hidden recorders, or spy technology have no chance anymore.

How does the protection work?

The device operates with a 300° full coverage and emits broadband ultrasonic signals that render any type of microphone useless. These interference signals randomly change frequency and amplitude, so that even the most advanced eavesdropping technology is unable to bypass the manipulation or restore the original conversations.

Your advantages:

• Blocks all common microphone-based eavesdropping systems such as radio bugs, GSM devices, directional microphones, and electronic stethoscopes
• Effective also against modern laser reflection and microwave eavesdropping methods
• Easy operation via a rotary control – protection level individually selectable
• One device reliably protects rooms up to 50 m²
• Discreet use – not audible to humans

The special piezo technology additionally directs the interference signals to furniture, windows, and walls, preventing even indirect sound transmissions.

Technical data:

• Battery capacity: 4000 mAh / 3.6 V
• Charging voltage: 5 V / 1000 mA
• Output voltage: 5 V / 1000 mA
• Standby current: 10 mA
• Shutdown current: 60 μA
• Anti-recording sound pressure: 120 dB / 30 cm
• Shielding angle: 300°
• Remote control: 433 MHz (433.05 – 434.79 MHz)
• Remote control range: up to 50 m
• Dimensions: 140 × 65 × 22 mm

Scope of delivery:

• ultrasonic audio blocker
• USB charging cable
• Remote control
• User manual

With the ultrasonic audio blocker you reliably protect your privacy from eavesdropping – ideal for offices, conference rooms, or private areas.