Audio

Mediatech Industrial Inc.
Multimedia microphone and headset manufacturer.
http://www.mediatech.com.tw/

Quadravox, Inc.
Specializes in stand-alone sound output systems and tools needed that support them.
http://www.quadravox.com/

Slim Devices, Inc.
Makers of the SliMP3 device, used to stream music over ethernet from a PC.
http://www.slimdevices.com/

Stereo Link
Offers USB audio products compatible with all formats: mp3, CD, Liquid Audio, Quicktime, and streaming. True Plug and play for Windows, Mac and Linux.
http://www.stereo-link.com/

Vpedal
Offers a foot pedal designed to connect to a computer to control the playback of MP3 and Wav sound files.
http://www.vpedal.com/