The PJ-310 directional portable recording jammer device is designed to prevent sensitive audio leakage. It uses ultrasonic waves to accurately interfere with the vibration of the microphone diaphragm, cut off the conversion of sound signals to electrical signals from the source, and completely destroy the data collection ability of the recording equipment.
The device uses a directional ultrasonic transmitter to accurately cover the target area (vertical + horizontal 80°) to avoid indiscriminate interference and exposure intentions.
Since the device is directional and the effective coverage range of a single unit is only 4 meters, if you want to achieve the best effect in the entire room, it is recommended to deploy 2-4 devices to work together to form a sound wave matrix to achieve no dead angle protection.
The 10 emission holes of the microphone blocker are all equipped with high-precision filters to prevent dust and foreign objects from entering, improving the durability of the equipment.
The device can instantly start and stop interference through a military-grade RFID remote control to avoid physical contact and expose the operation intention. It is suitable for high-risk tasks such as anti-hijacking and undercover visits.
PJ-310 can effectively suppress:
> Smartphones/watches/recorders (consumer-grade microphones)
> Directional eavesdroppers/laser microphones (highly sensitive spy devices)
> Seismic sensing microphones (through-the-wall eavesdropping devices)
> GSM/radio eavesdropping devices/composite recording repeaters (mixed signal scenarios)
Basic parameters:
| Number of transmitters | 10 |
| Ultrasonic interference frequency range | 24 – 26 kHz |
| Battery life | up to 5 hours |
| Weight | 400 g |
| Dimensions | 110×110×45 mm |
| Operating temperature | 0 to +50 °С |
