{
  "Navigation Type": ["Built-In", "Portable", "Smartphone App", "PDA Device"],
  "Screen Size": ["4.3 inches", "5.0 inches", "6.0 inches", "7.0 inches"],
  "Map Updates": [
    "Lifetime Updates",
    "Annual Updates",
    "One-Time Update",
    "No Updates"
  ],
  "Features": [
    "Real-Time Traffic",
    "Voice Guidance",
    "Bluetooth Connectivity",
    "POI Search"
  ]
}