Sennheiser SC230 USB MS II Noise Cancelling Mono Wideband headset (Skype for Business)

Specification : 

• Connector - USB
• Frequency Response (Microphone) - 150 Hz – 6,800 Hz
• Frequency Response (Headphones) - 50 Hz – 18,000 Hz
• Microphone - Noise-cancelling
• Sound Pressure Level (SPL) - Max. 113 dB limited by ActiveGard® 
• Cable Length - 9.5 ft
• Weight - 58g
• Warranty - 2 years
• What's in the Box?
• Headset
• Acoustic leatherette ear pad mounted on headset
• Cable/Clothing clip, mounted
• Nylon carry pouch
• Safety guide
• Quick guide