Ultrasonic Audio Recording Blocker | White Noise Generator | Powerful Microphone Suppressor Device | Prevent Voice Recording | BDA-3 (FCC, CE & ICES Compliant)

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Ultrasonic Audio Recording Blocker | White Noise Features

• ULTRASONIC EXPOSURE + VOICE IMITATION = 100% microphone jamming

• HIGH SUPPRESSION POWER AND ACTION RANGE. This microphone blocker emits a very powerful ultrasonic signal (not less than 120 dB) which suppresses microphones at a maximum distance of 7 m (23 ft). The distance is shortened to 2 m (7 ft) for newest iPhone models with an improved noise cancelling system.

• SOPHISTICATED ULTRASONIC PATTERN that is effective against newest noise-canceling and water-resistant phones. Range and effectiveness can be increased when used with one or more external ultrasonic speakers (sold separately).

• 7 ULTRASONIC TRANSDUCERS that ensure protection in front and across the device. Use it as a "virtual wall" to protect yourself from recording devices.

• CAN BE USED ABSOLUTELY SILENTLY but best results achieved when ultrasonic and white noise interferences are combined.

About Ultrasonic Audio Recording Blocker | White Noise

Microphone blocker "BugHunter DAudio BDA-3" with 7 ultrasonic transducers is an improved model with new suppression system and an option to connect an additional external ultrasonic speaker. It has 2 additional transducers on the top panel that create a "virtual wall" for maximum protection from sound recording devices. Device blocks most types of microphones, dictaphones (including professional ones) in the range of up to 7 meters (23 ft) and at even greater range when using the external ultrasonic speaker. For a maximum efficiency of ultrasonic interference it is advised to engage "TURBO mode". Acoustic interference volume can be adjusted (and even turned off for a completely silent operation), power can be supplied through a 110/220V power source or built-in battery. Device alone is not sufficient to suppress water-resistant and noise cancelling recording devices, at least one external ultrasonic speaker installed from an opposite direction is required for this purpose.