Opened headsets are final sale unless defective

H390 USB Headset

Features an adjustable, padded headband and plush ear pads for outstanding comfort. Digitally enhanced USB audio provides superior sound clarity. Noise-canceling microphone blocks unwanted sounds even in a noisy room. Convenient in-line volume and mute controls offer easy access. Rotating microphone boom swings out of the way when not in use.

Headset frequency response is 20 Hz-20 kHz. Microphone frequency response is 100 Hz-10 kHz. Headset includes an 8' cable. Headset plugs into a USB 1.1 or 2.0 port and is compatible with Windows 2000, Windows XP, Windows Vista and Mac OS X (10.2.8 or later).