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Stories about: Motion speaker

e-Revolution's Speaker "Says": Wave your Hand to Adjust the Volume Volume buttons are compulsory when it comes to building speakers, right? Wrong! e-Revolution�s magic-ball like motion speaker proves it. Thanks to the devices' built-in motion sensor, you can adjust the volume by moving your hand up and down in front of it. It's not just an ordinary speaker though. The Mot... 1 May 2007 18:06 GMT