Behind Neck Monaural Headset
Brand:Unknown
Model:SH333

Cyber Acoustics AC-201 Stereo Headset/microphone
Brand:Unknown
Model:AC-201

Cyber Acoustics AC-740 Silver PC Earclip Style Stereo Headset/Microphone
Brand:Unknown
Model:AC-740

Cyber Acoustics AC-850 Silver USB Stereo Headset/Microphone with In-line Volume Control
Brand:Unknown
Model:AC-850

Desk Top Stand Microphone
Brand:Unknown
Model:CVL-1066R

Labtec 980239-0403 Mono 341 Headset with Microphone
Brand:Unknown
Model:980239-0403

Plantronics SupraPlus Polaris P261 with Voice Tube - headset ( 64391-01 )
Brand:Unknown
Model:64391-01

Silver USB Stereo Headset/mic
Brand:Unknown
Model:AC851B