Neodymium speakers deliver unsurpassed audio in both narrow-band and IP wide-band telephony. Pure gold contacts ensure the best possible voice transmission. Patented, break-proof FreeSpin microphone boom allows over 360 degrees of unhindered rotation. Surgical steel details provide maximum strength and a high-quality, upscale look. Ultra-strong Kevlar-reinforced cord won't kink or break. Super soft ear cushions provide all-day comfort. Headset Type: Monaural; Headset Style: Convertible; Earpiece Type: Ear Cushion; Earpiece Material: Foam.