- Microsoft LifeChat
The LifeChat LX-3000 is a wired headset that connects to a PC by a USB cable. The headset features a microphone on an adjustable boom that can rotate up and down. The headset also has an in-line volume control switch with a mute button and a Windows Live Call button that activates voice calls in Microsoft Windows. The LX-3000 uses the CM108 USB audio chip from C-Media.  pagal
The Lifechat LX-2000 is a "behind-the-head" set of headphones with a microphone. It includes an in-line control box and a foldable design meant to reduce the size of the headset for travel.
The Lifechat LX-1000 is a very simple "over-the-head" set of headphones with a microphone. The microphone can only rotate up and down and is not as adjustable as the LX-2000 or the LX-3000. It was designed to be lightweight. This model also includes an in-line control box.
The LifeChat ZX-6000 used 2.4 GHz wireless technology to connect, allowing a range of 30 feet. 
The wireless receiver also allowed wireless Xbox 360 accessories to connect to the computer.
This model was discontinued.
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