The device is similar in sound to the TWANG BOX, but its construction and operation are different. The boing box gives the comedy sound "Boooooiiiiinnnnnnnnggggggg!"To get the "boing", hold the instrument like a standard guitar, and pluck the tautened wire. While the wire is reverberating, flex the neckpiece front to back to create a slow Boooooiiiiinnnggggg. Conversely, hold the instrument 'up-side down' and CAREFULlY shake the box so the neck vibrates to create several fast boing,boing, boing sounds.
A little practice will show how tight to draw the wire and how rapidly to vibrate the box.""