If you are looking for a headset to untether you from your desk you should consider the jabra T5330 Wireless Office Headset.

Available for around US$99 it can be a great way to increase daily production and make your communications by phone a lot easier to accomplish. According to Business Communications Solutions description:

With a full 10 metre wireless range, the Jabra T5330 unties you from the restrictions of the phone cord, allowing you to move freely around the office while taking and making calls. In addition, it keeps both your hands free to search for documents, take notes, go online, etc., while you talk.

You can view a brief video that introduces the Jabra T5330 at buy.com.

At just 15 grams in weight (0.529109429 ounces) you will hardly even know that you are wearing a headset. And with the adjustable ear-hook you can wear the Jabra T5330 on either your left or right ear and adjust it for tight fitting or a looser fit according to the size of your ear.