Apparatus for recording, reproduction and transmission of sound; accessories for recording, reproduction, and transmission of sound, namely, microphones, loudspeakers, headphones, headsets and wireless headsets for cellular or mobile phones, headsets and wireless headsets for use with computers and handheld digital electronic devices, headsets and wireless headsets for video and telephone conferencing, headsets and wireless headsets for use with audio and video receivers; application software...

Apparatus for recording, reproduction and transmission of sound; accessories for recording, reproduction, and transmission of sound, namely, microphones, loudspeakers, headphones, headsets and wireless headsets for cellular or mobile phones, headsets and wireless headsets for use with computers and handheld digital electronic devices, headsets and wireless headsets for video and telephone conferencing, headsets and wireless headsets for use with audio and video receivers; computer application...

Apparatus for recording, reproduction and transmission of sound; accessories for recording, reproduction, and transmission of sound, namely, microphones, loudspeakers, headphones, headsets and wireless headsets for cellular or mobile phones, headsets and wireless headsets for use with computers and handheld digital electronic devices, headsets and wireless headsets for video and telephone conferencing, headsets and wireless headsets for use with audio and video receivers; application software...

Apparatus for recording, reproduction and transmission of sound; accessories for recording, reproduction, and transmission of sound, namely, microphones, loudspeakers, headphones, headsets and wireless headsets for cellular or mobile phones, headsets and wireless headsets for use with computers and handheld digital electronic devices, headsets and wireless headsets for video and telephone conferencing, headsets and wireless headsets for use with audio and video receivers; application software...