This video is a sample of the performance achievable using products from www.audioservocontroller.com The audio in this clip is a custom created split stereo sound file. What you actually hear is a mono version of the original song from the left channel while the custom created right channel (that you do not hear) is being fed into the Audio Servo Controller via the onboard configuration jumpers. An MP3 player was used to supply the audio. The video shows how precisely the Audio Servo Controller syncs the jaw movements with the target vocals. You can also see the "From The Grave" finish that has been applied to the skulls. Visit www.audioservocontroller.com for more info on these products.