You can either place it indoor or outdoor as part of decoration to complete your dreadful display. Whenever someone is talking passes by, it will move slowly and make strange noises to create an spooky ambience.
Yes, it is sound activated animation monster hand. So it will start moving when someone nearby and clap or scream. It also is motion activated Halloween decoration that can be activated via touching as well.
All you need to prepare is 3-AAA batteries then you can let it plays its role. It can also works with severed head Halloween prop to create an unsettling atmosphere.