Hmm that sounds quite uncomfortable for what might be a common use case. I wonder if a parametric speaker would help. ex. http://www.soundlazer.com/what-is-a-

Hmm that sounds quite uncomfortable for what might be a common use case. I wonder if a parametric speaker would help. ex. http://www.soundlazer.com/what-is-a-parametric-speaker/ http://www.soundlazer.com/what-is-a-parametric-speaker/