Anti-Unauthorized Phone Recording Ultrasonic Speaker
Key Specifications
CUL-01 Ultrasonic Speaker has 33 ultrasonic emitters to avoid unauthorized cell phones to
record crucial and confidential information during meetings. It has unattractive appearance and
is suitable to be placed in a room or can be portable to work because of its built-in battery inside.
The best interfering microphone performance when CUL-01 emitters exactly face a phone’s
speaker because the emitters affects the microphone directionally.
Specification
Ultrasonic emitters:33 pcs
Dimension: 315mm×57mm×55mm
Operation time with built-in battery:2.5hrs
Remote control to turn on /off the device
CUL-01 can interfere iphone’s speaker up to 2 meters
when the emitters exactly face the phone’s speaker.