This Earphone

Buy.com has the Motorola Bluetooth DJ Headphones S805 on sale for $38 + $0 shipping = $38 shipped.
Play Time: up to approximately 17 hours, Weight: 5.5 ounces
Controls: Jog dial - track/ volume - push button- call answer/ play-pause

Product description from Buy.com:

Delivering the ultimate harmony or entertainment and communications, the Motorola Bluetooth DJ Headphone allows users to listen to their favorite tunes and never miss a call - all wi!
thout wires and without touching the phone. With astounding acoustics, comfort and battery power, the Motorola Bluetooth DJ Headphone is the perfect phone accessory for music enthusiasts.

FeaturesManufacturer Motorola, IncConnectivity Technology WirelessWireless Technology BluetoothEarpiece Design Over-the-headEarpiece Type BinauralManufacturer Part Number 98764HManufacturer Website Address www.motorola.com/usHost Interface Mini-phoneWeight 5.5 ozProduct Model S805Product Name S805 Bluetooth DJ HeadphoneProduct Type Headphone

Product link.

Etronics.com has the Sennheiser MM50 Wired Multimedia Headset for $39.20 + shipping = $46.19 Shipped.
Product link.

Buy.com has the Sennheiser RS 130 Wireless Headphone for $87 - $20 rebate (Expires 11/17) = $67 with free shipping.
Detailed, analytical sound reproduction with strong bass responseRange of up to 100 metres, 22 hours average battery life per charge

Product description from Buy.com:

Range up to 100 meters, 328 feet with Rechar!
geable NiMH batteries included

FeaturesRange up to 100 meters, 328 feet with Rechargeable NiMH batteries included

Product link.

Buy.com has the Samsung WEP180 Bluetooth Headset for $19.99 - $10 Exclusive Mail-In rebate (Expires 11/17/2008) + $6.98 shipping = $16.97 Shipped.

Product description from Buy.com:

Samsung WEP180 has powerful features and innovative design. Think you cannot expect both? Samsung Bluetooth Headsets WEP180 gives you both. Various!
vivid colors grab your attention. If they become your first headset, you may want to wear them all the time. Talk for hours with the ergonomically stylish design. Wear the Samsung WEP180 Bluetooth headset and keep communicating. It is compatible with Samsung and other non-Samsung Bluetooth enabled phones.

Tech SpecsTalk Time (Battery): 6 hour(s) Headset Type: Yes Caller ID: No Headset Attributes Caller ID: No Included Components: Charger Compatible Phone Model(s): Bluetooth v2.0 Phones Connectivity Range: 33 ft Bluetooth: Yes Wireless: Yes Battery Features Battery Type: Rechargeable (Unspecified) Standby Time (Battery): 110 hour(s) Talk Time (Battery): 6 hour(s)

Product link.

Buy.com has the Plantronics Explorer 360 Bluetooth Headset for $29.99 with free shipping.

Product description from Buy.com:

Enjoy hands free calls with the Plantronics Explorer 360, a comfortable, easy to use bluetooth headset. With features like a slim earloop, a soft eartip for long wearing comfort, one-touch controls for easy use, and QuickPair technology for fast set-up you”ll experience the benefits of hands free calls in a snap.
FeaturesCompatible with most Bluetooth-enabled cell phones Access all controls with easy-to-use buttons Fits in either ear with adjustable ear loop QuickPair technology provides fast set up Comfortable design Up to 7 hours of talk time; up to 200 hours of standby time Includes AC charger

Product link.