TELEX ANNOUNCES INDUSTRY’S FIRST MAC-COMPATIBLE USB MICROPHONES

USB Microphones Provide High-Quality Digital Audio Input for Apple’s iMac
and iBook Products

April 6, 2000 – Minneapolis, MN – Telex Communications, Inc. announced
today the availability of the industry’s first Universal Serial Bus (USB)
microphones for Apple iBook and iMac products. USB microphones from
Telex’s Computer Audio Products Group are the first USB microphones
available. With the release of Mac OS 9.0.4, Telex’s USB microphones are
now fully compatible with iBook and iMac products. USB is the only method
for providing audio input into Apple’s legacy-free iBook products.

Telex’s Computer Audio Products Group is the industry leader in USB
microphones and headsets. The company is in its fourth quarter of shipping
USB microphones. Telex’s USB product offering includes the H-531 USB
Digital Headworn Microphone and the M-560 Super-Directional USB Digital
Microphone. Both microphones are ideal for voice applications such as
language training, speech recognition, Internet telephony, chat, voice
recording, video conferencing or editing, and voice commands.

“Telex’s Computer Audio Products Group offers the world’s first available
USB microphones,” said Ned Jackson, CEO of Telex Communications, Inc. “With
the release of Mac OS 9.0.4, Telex’s USB microphones are now the first
fully compatible USB microphones for iMac/iBook products.”

“The phenomenal success of iBook among students and consumers has created
incredible opportunities for third party developers,” said Clent
Richardson, Apple’s vice president of Worldwide Developer Relations. “Telex
USB microphones are a great solution for iBook customers who want audio
input.”

USB is a universal plug and play peripheral connection included with
Apple’s iBook and most PCs. USB has enabled many digital technologies and
is especially conducive to digitizing sound input. For users of
microphones, USB provides a direct digital signal that results in the
highest quality audio signal for voice applications. The high-quality
digital sound from USB microphones offers a distinct quality advantage over
analog microphones, especially for users of laptop computers.

Telex Communications, Inc. has been an audio innovator for more than 60
years. The company developed the first specialized microphones for PC voice
applications and has since been first to market with other key
technologies, such as USB and far-field microphones. With headquarters in
Minneapolis, Minnesota, Telex employs approximately 3,000 people in 37
locations worldwide. Telex is a private company and is majority owned by
Greenwich Street Capital – a unit of CitiGroup.