Squawk, i think this site looks similar to some highpriced RN4081 suppliers that spam around in germany, at least this greentip is not that expensive.
you have one, check the size, length
threat type and i bet you find out, what real modelnumber this is.
the shops starterkit shows on one picture the box, a battery and 5 cartos similar to kr808. so these guys seem not to know what they sell.
i bit to suspicious for my taste.