CUL-01P Portable Ultrasonic Speaker has 8 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-01P emitters exactly face a 
phone’s speaker because the emitters affects the microphone directionally.  

Specification 
 Ultrasonic emitters:8 pcs 
 Dimension: 78mm×25mm×121mm 
 Weight: main device 220g/ whole equipment in the case: 650g 
 Operation time with built-in battery: around 4hrs 
 Remote control to turn on /off the device 
 CUL-01P can interfere iphone’s speaker <=1 meters 
when the emitters exactly face the phone’s speaker.