Head Type: one end is OBD2 OBDII Male Port ,the other end is female cigarette connector Extension length: 1m/39inch/3.3ft Weight: 100g (3.5oz) Compatible diagnostic tools with a 16 pin socket. OBDII Male Splitter to Female, Can support OBD device simultaneously without disturbing each other. OBD2 extension cable with power switch and can prevent battery damage Package Include 1M/3.3ft OBD2 Male to Cigarette Lighter Female Connector Vehicle Car Memory Saver Power Supply Cable