TeleNav GPS Navigator          TeleNav Talks. You drive. Voice and Onscreen Directions.         TeleNav is easy to use. As you drive, TeleNav GPS Navigator will give you all the information you need, such as:         *The current street.         *The next turn to take.         *The next street to turn onto.         *The distance remaining before next turn.         *The number of miles left on your trip.         Along the way, directions will be announced in a clear voice and displayed on your phone. For example, it will say, "Go 1.2 miles and turn right on Elm Street." As you approach the turn, you will hear, "Turn right on Elm Street." TeleNav GPS Navigator will even tell you that the destination is on your left-or right-hand side of the street.         Automatic Reroute         If you miss a turn or meet the traffic jam--no problem. TeleNav GPS Navigator will quickly update your route and redirect you to your destination.         Route Preview         Hit the road by previewing  your route before you go. You even get the total distance and estimate travel time to your destination.         Biz Finder         With TeleNav GPS Navigator, it's easy to find restaurants, banks, cafes, hotels and more from over 10 millions points of interest across the US.         Search by category, such as "Thai restaurant" and "hotel".         Search by name, such as "Thai Basil Cafe" and "Luck Hotel".         Once you've found what you are looking for, you can use TeleNav to get driving directions or call ahead to make reservations. Best of all, updates are free and automatic, unlike expensive GPS systems that charge for updates and require manual intervention.         Order TeleNav GPS Navigator  You Can Get a Favoured Price Now!         List Price: $199.99         Price:$142.77&this item ships for FREE with Super Saver Shipping.         You Save:28.6%         100% Secure         Every transaction on TeleNav.com is guaranteed to be secure. Any personal information you give us will be handled according to our Privacy Policy.         Need Help?         Questions about your order? Call us at 1-888-353-6288 for help.         Buying More Than 10?         Call 408-207-4103 to process your order more quickly.         Comments from the Users         "It's easy to use...the voice that tells you the turn directions--with names and streets--is clear and easy to understand."     --Dory Delvin         "It's clear that TeleNav helps professionals on the road make the most of their time." --Dale Hein Why are customers' comments quoted in the ad?
To emphasize its good post-sale services. To describe the uses of the product. To make people believe its top quality. To persuade people not to use paper maps.