HEADSETS FOR USE WITH TELEPHONES, CELL TELEPHONES, PERSONAL DIGITAL ASSISTANTS, TWO-WAY RADIOS, COMPUTERS, GAMING MACHINES, COMPACT DISC PLAYERS, CASSETTE TAPE PLAYERS, DVD PLAYERS, STEREO RECEIVERS, TELEVISIONS, VIDEO COMMUNICATIONS APPLICATIONS AND PRODUCTS, AUDIO COMMUNICATIONS APPLICATIONS AND PRODUCTS, AND VOICE INPUT-OUTPUT DEVICES FOR ANALOG VOICE TRANSMISSION
Electrical and Scientific Apparatus