Crazy BonezTalking Pose-N-Stay Skeleton

What activates the talking function? I just received mine and you have to touch it to hear voice. Is this correct?

where is the speaker located for this? Will this work with the external stand?

So he has to hear sounds like people coming to front door? Or is he start talking when he feels motion. Like tree branches moving or birds, squirrels

Where is the sensor?