This Earphone

Buy.com has the Plantronics Voyager PRO Bluetooth Headset - New OEM In Bulk Packaging for $63.99 with free shipping.
This product is sold at Newegg.com for $84.99; TigerDirect.com for $86.98; Dell Home for $95.99; TheNerds.net for $97.98.

Product description from Buy.com:

Featuring the next-generation AudioIQ digital signal processing (DSP) technology, the Plantronics Voyager Pro delivers superior noise and wind cancellation as well as rich, natural inbound audio so you can hear and be heard clearly in virtually any noisy environment–from windy sidewalks to hectic airports. This comfortable, behind-the-ear headset features two noise-canceling mics on a boom, AudioIQ technology with its adaptive 20-band equalizer, and three layers of WindSmart technology. The pivoting mic boom lets you wear headset on either ear and optimize the position of the two microphones, and automatic voice prompts alert you to battery and mute status. It provides up
to six hours of continuous talk time and five days of standb!
y from s
ingle charge.

Inlcuded in Poly Bag:

Bluetooth Boom mic Headset

Charging Adapter

User guide

FeaturesAlways-on dual-mic AudioIQ technology cancels noise while retaining the unique, natural sound of your voiceAutomatic voice prompts alert battery and mute status; multipoint technology connects to 2 devices simultaneouslyPivoting mic boom lets you wear headset on either ear and optimize the position of the two microphonesThree layers of WindSmart technology–stainless steel mic screens, acoustic fabrics, and an electronic filter–block intrusive wind noise

Product link.

J&R has the Shure SE420 Sound Isolating Earphones - Black for $199.00 with free shipping.
This product is sold at Buy.com for $213.67; B&H Photo Video for $229.95; TheNerds.net for $260.14; Amazon.com for $231.27.

Product description from J&R:

Featuring Dual TruAcoustic MicroSpeakers, the SE420 uses a dedicated tweeter and woofer to provide a detailed sound stage. Lows, mids, and highs are distinct and defined - for accurate reproduction of all the details of your music.

FeaturesHost Interface Mini-phoneProduct Name SE420 Sound Isolating EarphoneManufacturer Part Number SE420KManufacturer Shure, IncManufacturer Website Address http://www.shure.comProduct Model SE420Product Type EarphoneEarpiece Design EarbudEarpiece Type BinauralPackage Contents

SE420 Sound Isolating Earphone

Premium Fit kit:

• Three sizes sleeves(S, M, L)
• Universal fit pair of triple flange sleeves
• Extension cable (3 ft)
• Stereo adaptor (6.3mm
  )
• Airline adapter
• Carrying case

  Color BlackConnec!
  tivity T
  echnology WiredPlating Gold PlatedStandard Warranty 2 Year Limited

Product link.

Buy.com has the LG HBM-570 Bluetooth Headset - Blue/OEM for $23.99 with free shipping.

Product description from Buy.com:

The LG HBM-570 Bluetooth Headset has a dual mic for noise reduction and Echo cancellation. Name Alert function reports caller ID of incoming calls. The HBM-570 is lightweight and offers fast and easy pairing, multiple communication options and convenient volume control. The user friendly HBM-570 includes options such as Name Al
ert to announce incoming caller ID, voice dialing, last number redial, call waiting, call reject and auto-reconnect. Compatible with the models listed below.

Included in Poly-Bag:

LG HBM-570 Bluetooth Headset

Detachable ear loop

1 extra Ear bud

AC Charger

Manual

FeaturesDual Mic Echo CancellationNoise ReductionAudible Pairing AssistanceMulti-Connection (2 phones)Dedicated power buttonTalk Time maximum 5 Hours Standby Time Maximum 150 hours

Product link.

800photovideo (via eBay.com) has the Cellular Innovations LT100 Bluetooth Headset - Black for $9.99 with free shipping.
Product link.

B&H Photo Video has the Sennheiser HDR140 Wireless Headphone for $92.39 with free shipping.
This product is sold at TheNerds.net for $117.98; Computers4SURE.com for $139.28; 6ave.com for $149.95; PcRUSH.com for $122.77