S11X16VNS - 

Shielded Low Leakage Oval Speaker, Material Cone/Frame ABS/PAPER

These INTERVOX devices were designed with a wide frequency range. Available in rare earth, alnico and ferrite magnets. These products are suitable for applications such as computers, modems, digital communication, queuing annunciators and intercoms.
These units prevent picture distortion as well as color shearing normally associated with magnetic fields. They are available in oval, square, and round designs.