Directional speaker delivers personal sound, sans-headphones
As the world goes crazy about portable audio, Akoustic Arts engineers have taken a different approach to delivering sound. The directional "A" speaker transmits sound using ultrasonic waves, allowing you to enjoy headphone-free audio without disturbing your neighbors. .. Continue Reading Directional speaker delivers personal sound, sans-headphones...
I regard the brain as a computer which will stop working when its component fail. There is no heaven or afterlife for broken-down computers. That is a fairy story for people afraid of the dark