From the product description:
The Grim Reaper's 4' wingspan automatically flaps and his sunken eyes illuminate with an ominous glow whenever it detects sounds. It has posable arms and a skeletal visage that peer out of a hooded black tunic that has the tatter one would expect in a garment that's been worn to escort millions of deceased souls to the afterlife. The three-dimensional Grim Reaper hangs from a wall or eave with the included fishing line. Requires three AAA batteries. 39" H x 38" W x 5" D. (3 lbs.)
Here is where you can watch a short video of this mechanical flying winged Grim Reaper prop.