Bought 2, they are the TOMY ones. Dont buy this as its so crap, got bored in less than 10 seconds. The range on it is crap, its like 20 cm from the base, most of the time it goes off on its own.
Best for kids of under 10 as it'll prob amuse them, if you live in a cave then you'll find this facinating, otherwise, if you know what the internet is, you will not buy this junk.
Going to give this away, maybe as a birthday present or something.