$400 "buttkicker" sends bass directly into your chair

http://www.amazon.com/ButtKicker-Wireless-Theater-Advance-Amplifier/dp/B001HBH1B2/ref=pd_bbs_sr_1?ie=UTF8&s=electronics&qid=1228942418&sr=8-1

"ButtKicker wireless kit sends bass — accurately, powerfully, musically — directly into your couch, chair or seat."