If you like your movies and games with that extra bit of shake, rattle and roll, then may we introduce you to the latest chair-pounding ButtKicker. The Guitammer Company already does a line in pricey ButtKicker subwoofers designed to make your chair shake and rumble in time with the action on screen. The new wireless ButtKicker Kit is a cheaper solution to let you implement your own at home on a couch or chair. Obviosuly, don't tell Gran, sit back and then watch her face as something blows up on the telly. ButtKicker's low frequency audio transducers provide low frequency audio and realistic special effects, without loud volume. That's their way of saying it's silent but shakes your butt just as all that on-screen action is kicking off from your movies or games. They call it a '4-D experience' and if you've ever been to a Disney or Universal Studios show where the seats react to what's onscreen then you get the idea as it's the same company that supplies them. Oh, and it's wireless, to keep your living room partner-friendly. It starts shipping at the end of the week from Amazon, priced [US first] at around £200. If you have kids, then you already have something that kicks and shakes your chair while you're watching TV.-Martin Lynch [ButtKicker] gadgets geek movies