The Whadda WSSA203 LED Bat kit. Bring the Halloween atmosphere into your home with this soldering kit in the shape of a vampire bat. Watch your back, because the slightest noise will cause the orange LEDs to light up! This Halloween gadget looks like a creepy bat and has a matte black colour with white coating. The circuit board features 4 holes to give the bat claws, or to hang the gadget. This kit includes through-hole components and 12 orange SMD LEDs. Ideal for those who want to start SMD soldering. Thanks to the built-in microphone, the LEDs switch on when sound is heard. The microphone sensitivity is adjustable with the potentiometer to scare the others even more.