The Tongue Switch is comprised of a 1/2 inch (1.27cm) pressure-sensitive switch mechanism, a 1 inch (2.54 cm) flattened and bite-resistant stem, a 36 inch (91.4cm) coaxial wire, and a 3.5mm plug. It is configured so that the pressure-sensitive switch face is always oriented towards the user's tongue, regardless of the direction of insertion into the mouth, thus allowing the wire to be routed to the left or right.
The tongue movement required is most similar to that of pressing bubble gum against the back surface of the front teeth before blowing a bubble. The user will feel a "click" each time the switch is depressed, indicating that a page is being turned. The entire switch assembly is waterproof, and since it is situated entirely within the mouth, no jaw or teeth movement is required to retain or actuate the switch while turning pages.
For sanitary reasons, this item is not returnable unless it is found to be defective.