Sennheiser PC146 Behind the Neck USB Noise Cancelling Headset

Sennheiser PC146 USB Binaural, Stereo Behind The Neck Noise Cancelling USB Headset The PC 146 USB gives you the flexibility of a USB-compatible headset and fits behind your neck.  The discreet and flexible neck band won’t cramp your style and still delivers great sound and microphone performance.  With the unique 3D, 360-degree sound experience, sound comes at you from all sides including above and below. USB adapter with integrated sound card lets you take your own personal extreme surround sound with you for great dictation and playback performance. Specifications Headphones: Frequency response: 40 - 20,000 Hz Impedance: 32 Ohms Sound pressure: 109 dB Cable length: 3 m / 10 ft Connector plug: USB adapter and 2 x 3.5mm jack Microphone: Frequency response: 80 Hz - 15,000 Hz Pick-up pattern: Uni-directional Sensitivity: -38 dB Impedance: ~2 kOhms Compatibility: WIN 98 SE and above MAC OS 9.04 and above Features Robust microphone for high speed intelligibility Stereo Headset with single sided cable Adjustable, bendable, pivotable, noise-canceling microphone improves the clarity of your communication, and gives you more comfort and flexibility In-line volume control and microphone mute switch lets you decide volume intensity and have a side conversation in privacy Can be used with CD/DVD/MP3 players and for IP-based communications via a detachable USB adapter that reveals 2 x 3.5 mm plugs Cable wind-up clip keeps excess cable wire - between headphones and adapter - out of the way. In-line volume control and microphone mute switch XL ear caps for maximum noise isolation Skype Certified Replaces PC 145 model