Acoustic insulator for a telephone handset microphone

DETAILED DESCRIPTION The present invention encompasses an acoustic insulator substantially comprised of a single piece of material formed into two elements.
One element has a larger diameter than the other with a series of ridges encircling the larger element.
The insulator contains a hollow passage in the middle extending the length of the insulator.
A microphone is inserted in the hollow region in the first element.
Sound is able to reach the microphone through the rest of the hollow passage ahead of the microphone.
The insulator is inserted in the handset mouthpiece.
A small length of the insulator extends past the handset housing.
This part of the insulator rests on a surface when the handset is placed on a surface, sealing the microphone from the speaker audio.