What does this do?

VLine Infotainment System is a smart computer that connects to the back of your Nissan Infiniti stereo and fully integrates into Nissan Infiniti infotainment system and display without compromising or affecting Nissan Infiniti factory functionality.
Music Apps and Plugins: VLine VL2 for Nissan Infiniti can play any music app as available in Google Play Store. However, all VLine systems have built-in app plugins to create a unified environment with large display fonts and graphics for ease of use while driving. Plugins include Spotify, Pandora, Google Music and Web Radio (VLine own radio app that is similar to TuneIn). AM/FM Radio is also available under Web Radio plugin.
Other apps: Install any app available at Google Play store or sideload your preferred app. Note that not all apps are optimized for driving. Install safely and responsibly.
WiFi Connectivity: WiFi connectivity is required to use the majority of VLine apps and Maps. VLine can connect to the internet via WiFi either using Smartphone internet tethering or standalone mobile data hotspot/modem and data plan.
Bluetooth: Bluetooth A2DP music streaming is available for most Smartphones with cover art and title support.