Needed this for a house party I was setting up with a few mates, and whilst this is a great laser for the price; the advert above has a few, let's say inaccurate facts.
1. This is a Mini Laser Crab*, not the standard.
2. Whilst it runs on batteries and a cable, the cable is not supplied. Batteries are though.
3. There are 12 patterns, not 16. I didn't count, the leaflet and box instructed so.
The next point isn't actually advertised, although it's just a note I'd thought I'd state.
4. The lasers won't show up much in the air, (yes I used a smoke machine/fog machine). You'll mainly get patterns on the walls.
I'm not knocking the product, don't get me wrong (see my 4 star rating). For this price range you're not going to get much better off a site like Amazon unless you start going to rave sites and the such, many of which I don't trust. But at the end of the day, it isn't what the advertiser says it is.
*When I say Mini, I mean TINY.