EPOS Impact SC 635 Single Sided USB-A computer headset, also with a 3.5mm jack for many mobile phones or tablets.  HD wideband audio for the best voice sound.  In-line Call controls to adjust volume, and mute a call.  Large soft leatherette ear cushions for clear sound and all day use

Key Features:

• 3.5mm jack built in-line.
• Compatible major UC applications such as Cisco, Avaya, IBM, etc
• Mono speaker, single side
• Active noise canceling microphone, blocks out most of the background noise
• CircleFlex dual-hinge ear cup easy to adjust to your liking
• ActiveGard – technology protects you from noise spikes
• 3-year warranty
• 1000643 

For more details information, see EPOS Imapact 635 datasheet