This fun solder kit sounds like a real cicada when it gets dark! The cricket consists of three parts: the body and two wings. This gives an extra dimension to the cicada so that it looks just like the real thing (but bigger).When it gets dark, the built-in phototransistor makes the buzzer sound and an orange LED starts flashing.You can use the included components to provide the insect with legs. The kit runs on a 9V battery (not included). Autonomy is 30 hours with continuous use.