The Portable Killer is a battery powered insect killer unit that slowly propels an odourless scent that is harmless to humans, but extremely effective against biting insects. The unit is supplied with a single cartridge that provides up to 7 nights protection before it needs to be replaced (replacement cartridges are available separately). Weight: 125 g Dimensions: 70 x 38 x 70mm Lightweight Effective for 7 nights (Approx.) Treats: 30m3 (Approx.) Batteries included