Jabra EVOLVE 20 UC Mono USB-A Computer headset with noise canceling and in-line controls perfect for VoIP applications. This is the mono version (single ear) with soft foam ear cushions.  It's an affordable call center headset solution for large deloyment with professional grade quality.

Key Features:

• USB-A
• DSP Digital Signal Processing (DSP)
• Foam ear cushions
• Noise canceling microphone
• In-line controls for volume, mute
• part# 4993-829-209

For more information, see Jabra Evolve 20 UC Mono datasheet