This amazing scare incorporates a rear  lid lifting lid action of an older style wooden delapitated crate box / coffin. 
inisde is an inconspicuous character lifting to scream and ponder with head jolting  and subtle body oscilations.   raises and lower fro horizontal position to 90 degrees vertical . 
 
 
 
PLC or STM controls Digital Audio repeater and full Stereo sound.IP65 rated speakers.  great for above ground and below ground applications .
 
additional video link
https://www.youtube.com/watch?fbclid=IwAR3YZiO-w4_vjR0mS9wQyv0FpZXXjFyTkWidBxDURdl345EVY6qS33WBB0Y&v=exS_kkJZf5k&feature=youtu.be