Mono Headset
Model: TW106

Headset with Flex Mic
Model: GSI-RM

Ultra Noise Cancelling Mono Headset
Model: GSI-VT5009

Comfort Headset
Model: GSI-VC018

Bluetooth® Mono Headset for Speech Recognition
Model: TW113

Headphones with Detachable Mic
Model: SG555

Headset with Omni-Directional Mic
Model: GSI-VT1000

Ultra Noise Canceling Headset
Model: GSI-VT6000

Mono Headset with Dongle
Model: GSI-VR1