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Perhaps the Nav One 4000's most unique feature, however, is its compatibility with Cobra's optional traffic receiver and antenna (sold separately), which offer real-time traffic updates to commuters and travelers. The matchbook-sized receiver receives up-to-the-minute information on traffic accidents, congested roads, and construction zones in 48 major metropolitan areas across the U.S. As the unit processes the info--which it picks up from an FM radio feed via Tele Atlas N.V. and Clear Channel's Total Traffic Network--it automatically determines alternate routes, letting the driver detour around the worst snarls and enjoy a stress-free commute. It's the perfect unit for frustrated commuters and other folks who spend much of their day in the car.
The maps and instructions are easier to read than ever thanks to the 5-inch color display, which sports wide viewing angles and a crisp lighting level that's readable in both bright sunlight and dim moonlight. It also offers 3-D views for easier navigation, along with 14 levels of map zoom and exclusive terrain display, making it simple for the directionally challenged to find their way.
Additional features include a built-in gyroscope that maintains map positioning under tunnels and underpasses; an address book that holds up to 1,000 addresses in 20 customizable folders; multi-stop routing for drivers with complex itineraries; and Trip Planner and Trail mode functions. The Nav One 4000 comes with a dash mount and is backed by a one-year warranty on parts and labor.
What's in the Box
Nav One 4000 receiver and display, mount, user's manual.
The item was shipped fast and received in good condition except a 5 mm nut was missing on the swivel which was no big deal. Read morePublished 10 months ago by john rejniak
I purchased this unit as an upgrade to the Garmin StreetPilot c340 and I couldn't be happier! There were two reasons why I decided to upgrade to Cobra. Read morePublished on January 15, 2009 by NDS
Huge screen, detailed directions, ease of use. These things are all there; HOWEVER, Cobra has not published a software update since August of 2006. Read morePublished on December 7, 2008 by Amy Gautreaux
We purchased this unit especially for the large screen. As to previous comments: The manual is cursory at best and no additional information is available on their web site. Read morePublished on October 18, 2008 by capndino
I received Cobra GPSM 4000 as a gift from my son in Mother's Day.
I was really happy... it works fantastic. Read more
So far I find the Cobra unit is very accurate and has all the features I need. I like the large screen and voice directions. Read morePublished on June 4, 2008 by Gerald G. Maske
I just had this over the weekend and only payed 125 so heres my thoughts. For what I paid for it I can't complain about what it is/isnt. Read morePublished on April 14, 2008 by R. Harmacinski
Bought this unit for the big screen size and some other reviews that I had read. What a mistake. The unit operated for a few weeks OK with the turn by turn directions a major plus. Read morePublished on March 8, 2008 by harv1l
I purchased this item after spending days reading other reviews on various products. I have a navigation system in my BMW and was hoping for one just as good to use in my... Read morePublished on October 3, 2007 by Belinda Silva