(Frequently Purchased Together) This product is only compatible with DreamMaker products. Please check the contents of the pickup page carefully before making your purchase. Note: This model contains 8GB map data. When the map is scale less than 100m (3D views are less than 50m) and can be displayed to show the shape of some buildings, except for private homes. If you want to know the shape of a building, including a private home, you can purchase a 16GB map data model. About GPS Reception: When you start navigation at the first time, it may take several minutes to read the map data depending on the GPS reception. Depending on the reception location, GPS radio waves are blocked, hard to recept, and places that cannot be received. The GPS antenna is built into the main unit, depending on the installation environment, the GPS may be difficult to receive it. Please use an external GPS antenna. (Usage for Idling Stop Vehicles) For some idle stop vehicles, the supply voltage may be temporarily reduced if the idle stop function is activated. Therefore, the power of the product itself may fall off, but this does not indicate a defect. (About Cigarette Lighter Adapter) Please use the cigarette lighter power adapter alone. If you connect the cigarette lighter socket to a splitter adapter, the power of the unit may become unstable and cause the screen flicker. [Manufacturer Warranty] 1 year