THESE DIRECTIONAL SPEAKERS THROW SOUND IN FOCUSED BEAMS LIKE A SPOTLIGHT – Catchflow
These directional speakers throw sound in focused beams like a spotlight - Yanko Design
World's Smallest Directional Speaker | SRAY brings audio to target audiences without disturbing those around them | By Interesting Engineering | Facebook
Catchflow – Your Sound, Your Flow
Samsung S-Ray speaker is like a death ray for your ears, without the dying part - CNET