Electrical connector having flexible mating portion

An electrical connector (100) adapted for connecting/disconnecting with/from a complementary connector in a front-to-back direction, comprises a shell (1), an insulative housing (2), a pair of locking members (3) and a plurality of contacts (4) received in the insulative housing. The shell comprises top surface (113), a pair of lateral surfaces (114) and a bottom surface (117), said surfaces defines a receiving space, one of the surfaces forms a pair of resilient tabs (1170) bent into the receiving space. The insulative housing received in the receiving space. The locking members assembled on the longitudinal opposite ends of the insulative housing and received in the receiving space, each forms a stopping projection (37) projecting therefrom into the receiving space. The resilient tabs, respectively, resist with the stopping projections of the locking members to stop the locking member from moving.