I would think since it's made for in car use that it would have the echo cancelling feature but who knows...
"Additional Information The microphone plugs into the bottom of your car kit - the connector locks into place to prevent being accidentally pulled out. To lock, insert the plug socket into the MIC socket of the car kit and twist 90°. The microphone can be placed around the car for convenience of use.
Discreet and effective directional microphone. Struggling to be heard whilst communicating in your car? Invest in a Nokia microphone.
Small and effective directional microphone."