3 ms·Unless physics has changed, I think headphones are the only way to do this.by _Parfait_ 3y agoUnless physics has changed, I think headphones are the only way to do this.kaibee 3y agoDirectional speakers exist and are very effective actually. Whether this device is using one, I have no idea._Parfait_ 3y agoYou can't create a "bubble" of sound unless that just a marketing term for quiet and facing only the user.askiiart 3y agoWell I don't know about a bubble of sound, but there are "sound lasers" https://youtu.be/aBdVfUnS-pM https://youtu.be/aBdVfUnS-pM_Parfait_ 3y agogo about 2:14 into that video. also outside of this argument, that is really cool either way. thanks for sending!