Mountain rescue service can not use their helicopters when dusk begins to fall. In case of emergency police helicopters assist because of the extra equipment of infrared, search lights, and loudspeaker.
As loudspeaker at the model a PVC dummy fits well.
Loudspeaker, 38 mm long, conic from 11 to 35 mm Ø, approx. 1.5 g
This product may contain chemicals that are known in the state of California to cause harm.