Sennheiser SC30 USB CTRL Mono USB Headset with in-line Call Control

Specification :

• Wearing style - Headband
• Weight - 82 g / 2.87 oz
• Microphone - Noise-canceling
• Frequency response (microphone) - 150 Hz – 6.800 Hz (Wideband)
• Speaker type - Neodynium Magnet Speaker
• Frequency response (headphones) - 60 Hz – 16 kHz
• Sound pressure level (SPL) - Max. 113 dB limited by ActiveGard™ 
• Cable length - 2.1 m / 6.89 ft
• Connector - USB 
• Color - black