This exciting DIY kit allows you to construct your own fully functional bat detector. Perfect for budding scientists, nature enthusiasts, or anyone curious about the fascinating world of bats. Key Features: Easy-to-Assemble: Simple push-fit connectors and screw-together parts make assembly a breeze.
Would not work when switched on. Then I blew it up by accidently touching the battery the wrong way.
It is a very simple addition to use a diode to prevent this so very disappointed.