Why have one when you can have three! The first one I bought from eBay Spain and didn’t realise until I received it that it took batteries and had a siren and flashing lights. That was a couple of years ago now and I’ve since found two more. Buying twingos for me is a bit like pringles. Once you start you can’t stop. The batteries are actually quite cheap to buy online too.
Take a look at the video too, link below.