Sennheiser
The Best headset that we have found is the Sennheiser BW 900. Let me quote an enthusiastic user:
" As a headset for mobile phones, this thing is OUTSTANDING. There is crystal clarity on a call driving 65 mph on Rt 53 with windows down, radio on and semis passing next to you."

Plantronics

PLTX-DISCOVERY-655
Plantronics
HS with DSP Technology w/Accessories
The Plantronics Discovery 655 Bluetooth headset fuses cutting-edge technology with a sleek, ultra-light and discreet design to deliver a mobile experience unlike any other. With Digital Signal Processing (DSP) the latest in audio technology the Plantronics Discovery 655 reduces noise levels to provide enhanced sound for clear conversations. It weighs only 9 grams and comes with an innovative charging system and secure carrying pocket that provides up to 10 hours of talk time and includes a unique vibrate ring indicator. The Plantronics Discovery 655 sets the standard for style, mobility and performance.
BlueTooth Mobile Headset
Small Lightweight Design
Easily recharge from your PC
Click Here to Order Now!
PLTX-VOYAGER-510S
Plantronics
Bluetooth Headset w/Desktop Adapter Base
Enjoy wireless freedom in the office or on the go with the Plantronics Voyager 510S Bluetooth Headset. Ensuring lightweight, all-day comfort, the Voyager 510S delivers superior sound quality and provides WindSmart technology for clear voice transmission. At the touch of a button you can seamlessly switch between office phone and voice-enabled Bluetooth mobile device. Wherever, Whenever, Wireless.
Bluetooth wireless office headset
Noise canceling microphone
In-the-ear wearing style
Click here to Order ONLINE Now!
GN Netcom/Jabra

GN-J100-91250001-02
Jabra/GN
Jabra BT 125 Bluetooth headset
The Jabra BT125 is the ideal accessory when multi-tasking is the order of the day. You can get on with your jobs and make and take your phone-calls without losing the use of one all-important hand! And when you're in the car, tackling town with a toddler at your side, or even just making a cup of coffee or ironing your shirt - you can keep on talking without compromising on safety. The Jabra BT125 is so light and comfortable that you'll hardly notice you're wearing it. And its design is so functional, you'll rarely ever have to touch your mobile phone. What's more, it couldn't be easier to pair and operate.
Up to 8 hours of talk time
Up to 170 hours of stand-by time
On-the-ear wearing style

GN-J100-91600000-02
Jabra/GN
Jabra bluetooth BT160 for bluetooth enabled
The Jabra BT-160 BlueTooth wireless headset complies with BlueTooth version 1.2 specifications. It comes with 33 colored covers and has a range of 30 feet. However you're feeling, you'll find a headset style to match your mood.Wild, sporty, elegant, fruity, scary, or just plain gorgeous, the Jabra BT160 has a look to match. Communicate in the style that's right for you, and when you change your mind, simply change your style. And remember, it's your call so make it fun!

GN-J100-93500000-02
Jabra/GN
Jabra BT 350 Bluetooth vibrate alter headset
The Jabra BT350 is a wireless mobile headset with high-quality sound and all the functionality you need for the perfect hands-free mobile experience. The BT350 features vibrate alert, which lets you know when you have an incoming call even if you're not wearing your headset. This, along with the convenient answer/end button and volume control, means you can manage your calls without accessing your mobile phone. The over-the-ear BT350 headset is designed to look great and feel even better. It is a compact headset with a striking modern design. It is very light and fits comfortably over either ear so comfortably that you'll almost not notice it's there.
BlueTooth mobile headset
Over-the-ear wearing style

