Headphone-convertible telephone hand set
Headphone-convertible telephone handset
Headset
Headset
Headset
Headset
Headset adapter for microphone and earpiece
Headset adjusting
Headset cable retainer
Headset communication unit
Headset communication unit
Headset communication unit
Headset construction and method of making same
Headset for hands-free wireless telephone
Headset for use with a communication and/or multimedia device
Headset for use with a radiotelephone
Headset with adjustable earpiece
Headset with auxiliary input jack(s) for cell phone and/or...
Headset with auxiliary input jacks(s) for cell phone and/or...
Headset with integral hook