At home or in the office, the PC 21-II headset has been specially designed for easy internet-based phoning. Its single-sided wearing style lets you enjoy the conversation while being in touch with whats going on around you. And the lightweight, adjustable headband is comfortable to wear all day long.

So you can be sure that you are clearly heard, the PC 21-II has an improved noise cancelling microphone. It reduces background noise, to give you great voice quality, and is highly sensitive too, making it perfect for when you want to use speech recognition applications. Just adjust its flexible boom arm. Move it up/down or forward/back to position it where it needs to be.

Features

• Sennheiser sound: A quality speaker delivers great acoustic performance, so you'll always hear whats being said
• Noise cancelling clarity: The microphone filters out ambient noise, so your voice is always clear and easy to understand
• Reliable speech recognition: The microphone is specially designed for your devices speech recognition function
• Keep one ear free: The single-sided design keeps you in touch with your surroundings while you talk over the net
• Fully flexible boom arm: Adjust the microphone for optimal voice pick-up and comfort
• Light and comfortable: With the lightweight headband, its easy to forget you are even wearing a headset
• Peace of mind thanks to the 2-year international warranty
• Minimum Frequency Response 40 Hz
• Maximum Frequency Response 18 kHz
• Microphone Sensitivity -38 dB
• Weight (Approximate): 60.0 g
• Impedance 32 Ohm
• Earpiece Sensitivity 109 dB
• Cable Length: 3 m