I hate these devices with a passion. Its the cheaters way to clouds. If someone came up to Me with one of these and challenged me to a cloud off I'd kick him in the nuts, steal it, then run....
Hey not everbody has spare wire coathangers & backpack particle accelerators to build & power their 0.00000000000000000000000000000000001 ohm coil, and some of us just wanna piss off the skint guy...