Manufacturer of telephone headsets with inbuilt amplifier, transcription and dictation headsets, loud speakers, microphones, and earphones. Based in Hong Kong.

Manufacture standard handsets, headsets, and component parts for telephone applications. Product specifications, photographs and color charts.

Manufacturer and distributor of "the Boom" cellular phone headset featuring noise-cancelling microphone ideal for noisy environments.

Develops, manufactures and supplies telephone headsets for a variety of applications.

Develops and manufactures handsfree communications products.

A publicly held mobile headsets manufacturer headquartered in Santa Cruz, California.

Manufacturer of replacement telephone handsets.