HANOVER, Germany--For those who want to take their music with them, a more convenient option than lugging loudspeakers is now available: fist-sized, battery-powered devices called vibration speakers.
These chunky widgets transform a table, floor, car roof, or even window into a large speaker. One one end is a tweeter for playing higher-frequency pitches, and on the other a driver that moves the surface to which it's attached, converting it into a giant woofer.
The devices were thumping loudly on the CeBIT tech show floor here as manufacturers tried to drum up customers, distributors, retailers, and business partners. … Read more