Yes you can indeed cause havoc anywhere!
The standard ones have a maximum range of 20-50 feet.
And the PRO ones, which are disguised as an Ipod. Have a maximum range of 150 feet!!!!
Have a look at this! he turns off a MASSIVE roof screen towards the end!!
http://www.youtube.com/watch?v=EG9G0PxKa0k
And causes havoc in the whole of Las Vegas!
My goal is the screen on a cruise ship next year!
http://www.bolsovercruiseclub.co.uk/uploaded/1236332610.jpg