Super Mini ELM327 V1.5 Bluetooth Wireless OBDII OBD2 Auto Car Diagnostic Interface Scanner Trouble Fault Code Reader Scan Tool PC-based & Smartphone-based OBDII Diagnostic Scanner makes your computer & smart phone be a sophisticated diagnostic system. Connects to PC or Smartphone wirelessly via Bluetooth. Super Mini. Case Dimension 22x48x24mm (excluding OBD2 interface). ELM327 processor inside. Supports most of the current OBD2 protocol, like ISO 15765-4 CAN, SAE J1850 PWA, SAE J1850 VPW, ISO 9141-2, ISO 14230-4 & SAE J1939.?