speaker aiming device?

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Not sure what the terminology is for what I'm looking for. I currently use my Tab for in car entertainment for my child. With the speakers on the sides, I have to turn the volume up pretty high for him to hear. With the left speaker aiming at the driver, that can get annoying.

What I'm looking for is a passive device that would connect to the sides of the Tab to divert the sound of the speakers more toward someone sitting in front of the Tab.

something like the SoundJaw for ipad
soundjaw.com
Any ideas?

thanks

Some kind of clip on directional cones would help with this (I've noticed this by chance when holding the thing with both hands while lying down). Maybe in your case, though, a Bluetooth headset or speaker might work best.