Ann: Annual Report to shareholders, page-5

Packaged EarthMountain devices were measured and
demonstrated to reproduce a near flat frequency response
from 100Hz through 50KHz. This pioneering achievement
for the first time makes it possible for a single device to
reproduce crystal clear sound throughout the audible
spectrum ‑ without imposing the tradeoffs required by
conventional speaker technologies to achieve quality
sound through the utilization of separate drivers to
reproduce the low, mid, and high frequencies.

Here we go.................