An electrical connector (100) includes an insulative housing (10) defining a receiving hole for accommodating a mating plug, a first set of and a second set of switch terminals (21, 22, 23, 24, 25), and a flexible terminal (27) positioned between the switch terminals (21, 22, 23, 24, 25). The flexible terminal (27) has a retaining portion (270), a flexible arm (271) bent from the retaining portion (270) and a contact portion (275) formed on the flexible arm (271). The switch terminals (21, 22, 23, 24, 25) abut against the plug in a left-to-right direction. The flexible terminal (27) abuts against the mating plug in an up-to-down direction to provide a great insertion force in order to reach a good inserting or pulling feeling of the mating plug.