Question regarding Ultrasonic at work

Hi, question. I want to use the Ultrasonic subliminal at work, but I don’t have a desk job.
I was wondering if the Ultrasound would be effective if I put my phone in my front pocket or back pocket?
Thanks in advance.

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It shouldn’t be a problem. I do it sometimes.

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just calibrate the volume. Play something and put it on your pocket, if you can listen you’ll hear the ultrasonic too.

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Thank you! I appreciate it.

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