Thank you for viewing! This is a navigation system specifically for the 20 series Alphard and Vellfire. The size is 10 inches, making it very easy to see, and the larger navigation screen significantly updates the interior's look! Bluetooth is enabled! Also, by tethering with your smartphone, you can use YouTube, Netflix, etc.! Apps like Netflix can be downloaded from the Play Store. Each unit has been tested for power, so the box has been opened once. Regarding installation, it's designed specifically for the vehicle, making it a simple plug-and-play installation. However, if you lack installation knowledge or confidence, please have a professional install it. If you want to use the original back camera, a conversion coupler is required. It's available for an additional 3,000 yen, so please comment before purchasing if you'd like it. The navigation system uses the latest version. Accessories like microphones may or may not be included, but there are no issues with installation or use, so please be aware of this. The product is new and in stock. We will ship it on the same day or the next day. If you have any questions, please feel free to comment.