it is sound control led stagelighting . so please see below movie : 

see Movie file:

http://www.tudou.com/programs/view/fFCeOYIAt4E/?tpa=dW5pb25faWQ9MTAyMjEzXzEwMDAwMl8wMV8wM/?union_id=100501_100500_01_01

http://v.youku.com/v_show/id_XNTU4OTMxNDcy.html

or connect with me on MSN:xo123@126.com for more   movie file and pictures