08-21-2014, 04:51 AM
I think headphone with ultrasonic should be more powerful than masked simply because it's the case with speaker.
The only problem is that ultrasonic with headphone is not recommended by Shannon. I think you know why. Still people will use it just because they can/want/need so then the question come up.
The only problem is that ultrasonic with headphone is not recommended by Shannon. I think you know why. Still people will use it just because they can/want/need so then the question come up.
