FCC compliant
Microphone, dictaphone jammer "BugHunter DAudio bda-4 Voices" is a stationary device disguised as a desktop speaker. Equipped with 8 ultrasonic transducers and 1 acoustic speaker, our new jammer features new jamming system which is capable of suppressing all eavesdropping devices (micrpohones, including laser ones, dictaphones, smartphones etc.). The device is powered by 110/220V mains which ensures maximum power of jamming interference.
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The newly upgraded jamming system is 25% more powerfully suppresses any eavesdropping devices including professional microphones and smartphones with protected microphones (IP65-68). Ultrasound combined with audible frequency. Now ultrasonic interference consists of two frequencies simultaneously: ultrasound (frequency range is over 20 kHz) and acoustic sound (frequency range is 18-19 kHz) with speech-like noise. Both signals overlap each other in the air forming powerful interference approximately 40-60 cm (1.3-2.0 ft) away from the transducers. As a result, eavesdropping devices overload with noise and record only interference generated by the device. Speech-like interference or so-called "white noise" turns record of your conversation into indistinct set of sounds. Restoring the conversation becomes physically impossible even by professional devices. Use speech-like noise by mutual consent with your partner, because this interference is audible and may disturb. However, in return you will receive 100% confidentiality of your negotiations. |
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The device features a rotary knob used for volume adjustment The knob located on the back of the device’s housing is designed for acoustic interference volume adjustment. You can switch acoustic interference off by turning the knob to a minimum. In this case, the device will generate only combined ultrasonic signal. Notice: Jamming of all possible eavesdropping devices is not guaranteed with speech-like noise interference turned off. |
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You can turn the jammer on and off inconspicuously for others using a remote control. Remote control action range is 10 m (33 ft) |
BDA-4 generates very powerful ultrasonic signal (at least 125 dB) which is spreading according to a specially developed algorithm and jamming microphones at a distance from 1 to 7 m (from 3 to 23 ft). |
Despite its power, the device is safe for people if used properly. Keep the operating device away from human ears to ensure your safety. |
Package contents:
- microphone jammer "BugHunter DAudio bda-4 Voices"
- power adaptor
- english manual
- 1 year warranty and lifetime support
Model |
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Jamming range, m |
Up to 7 (23 ft) |
Up to 7 (23 ft) |
Up to 7 (23 ft) |
Up to 10 (33 ft) |
Ultrasonic interference |
yes |
yes |
yes |
yes |
Sound interference |
no |
no |
yes |
yes |
Speech-like interference |
yes (if used with external acoustic speaker) |
yes |
yes |
yes |
Number of ultrasonic transducers |
5 |
7 |
8 |
100 |
Sound pressure level at 1 m (3.28 ft) distance from the device, dB |
120 |
120 |
125 |
124 |
Silent operation |
yes |
yes |
yes (only a faint crackling sound is heard) |
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Remote control |
no |
no |
yes |
yes |
Option to connect external ultrasonic speaker |
no |
yes |
no |
no |
TURBO mode |
no |
yes |
no |
no |
Power |
2500 mAh built-in battery / 110/220V mains |
3600 mAh built-in battery / 110/220V mains |
110 / 220V mains |
110 / 220V mains |
Dimensions, mm |
155 х 95 х 31 (6.0 x 3.7 x 1.2 in) |
170 х 95 х 31 (6.7 x 3.7 x 1.2 in) |
180 х 165 х 110 (7.0 x 6.5 x 4.3 in) |
310 х 310 х 50 (12 x 12 x 2 in) |
Weight, kg |
0,3 (0.7 lb) |
0,3 (0.7 lb) |
2 (4.4 lb) |
2 (4.4 lb) |
