Click here to go the merchant's page.
Buy.com has the Samsung WEP500 Mini Bluetooth Headset for $19.99 after $30 rebate (exp 5/15/08) with free shipping.
Final Price for this deal: $49.99 - $30 = $19.99 + Free shipping

Description:
Accept no interruptions with the Samsung WEP500’s state of the art noise reduction technology. Tucked inside the Bluetooth earpiece’s sleek fashionable exterior you’ll find a plethora of advanced features. Equipped with 2 microphones, the Samsung WEP500 reduces unwanted noise with its own voice separation technology which can distinguish and Block unwanted voice next to you. Clarity is further enhanced echo cancellation and auto volume control.

Features
Slim and small design, weighs under 9g, no ear hook
Powerful noise reduction - maximum of 20dB noise reduction compared to other handsets which can only reduce 10dB.
Bluetooth specification Ver 2.0
Enhanced Data rate - good Audio quality by minimizing interference between Bluetooth or WLAN
HFP version - v 1.5
Talk time: up to 3.5 hours
Standby time: up to 80 hours
Ergonomic ear rubber - new hybrid type fits tight with a smooth feel
Auto volume control
Comes with Charger and carry case