Simple one-time purchase; No subscription fees Compliance Solution for Hours of Service (HOS) recording complies with FMCSA ELD mandate Supports 9-pin J1939 and 6-pin J1708 diagnostic ports; Not compatible with vehicles using OBD-II protocol (SAE J1979);Vehicles with Volvo engine and 16-pin J1962 require separate cable, not included Stores ELD records securely on your compatible smartphone, accessible for inspection via the device’s USB port or via FMCSA Web Services over Bluetooth Download the free Garmin eLog app to a compatible smartphone to complete your compliance solution