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
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
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