• Quick Disconnect (QD) option, which requires an additional cord. • Works with traditional desk phones. • Offers stereo sound through two speakers (look for Duo or Stereo). • Enhances call clarity by eliminating background noise from the office. • Noise-cancelling microphone with excellent noise reduction - great for open, loud office environments. The boom arm can be adjusted to the user. • Large (L) foam ear cushions • Offers stereo sound through two speakers (look for Duo or Stereo) ** exclude QD Cord ** c/w 0.8m QD cord 18 Months Manufacturing Defects Warranty