http://walletup.com/i/postimg/20101028_074804p.jpg

Plantronics MX250 Headset, White (3-Pack) for $5.99 Shipped

Plantronics MX250 Headset, White (3-Pack) for $5.99 shipped.  Here is a screenshot for your reference.  This headset features pivoting boom and noise-canceling microphone and is compatible with most mobile phones.  Note that it comes in OEM packaging, which means no pretty retail box and marketing materials but is otherwise identical.  Most places have one headset for about $19.