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- Directional noise canceling microphone blocks the unwanted background noise to transmit the clear and natural sound- Lightweight memory steel headband rotatable ear cap and flat foam ear cushions for a comfortable fit- Robust design and high quality materials withstand intensive daily use- Plug and play easy to set up and fast to deploy - Convenient call management including call answer/end mute volume+ and volume- - Busy light indication shows the working status and prevents unnecessary interruptions- DSP (Digital Signal Processing) for clear voice communications even in a noisy environment- Compatible with most leading UC platforms - ADDASOUND's headsets follow the International Noise Safety Standards and help create a safe and comfortable work environment- *** Call Answer/end and busy light only work on Skype for Business"

USB A to USB C adapter connect to any USB-A headset

- QD (Quick Disconnect) to RJ9 direct connect cable- The cable connects ADDASOUND QD series headset to CISCO IP Phones with RJ9 port