Ultrasonic voice interference for phone, video, pen recording jammer

Anti-Recording Box Design Conference Anti-Bugging Cell Phone Recording 360° Interference Signal Anti-Recording Guards Microphone Jammer

48pcs Transmitting head,360 degree interference

FH18
1.Interference distance 2-6 meters
2.Jamming Angle 360 degrees
3.Boot mode Manual + remote control
4.Battery capacity 4000mah can be plugged in
5.Battery life About 3H

Ultrasonic 360 Degree Noiseless Voice Audio Recording Jammer

1.Interference distance 2-6 meters
2.Jamming Angle 360 degrees
3.Boot mode Manual + remote control
4.Battery capacity 4000mah can be plugged in
5.Battery life About 3H
6.Jamming device type Mobile phone, recording, video and other devices
7.The dimensions of the host are 180*125*95mm
8.Housing material ABS
9.Charging time 4 hours full
10. Use environment -20 degrees -45 degrees