Waterproof electrical connector

An electrical connector comprising:

• a lower insulative housing comprising several terminal slots, the slots comprising a sink communicating to exterior;
• an upper insulative housing assembled on the lower insulative housing to define a receiving room for receiving an audio plug, the upper insulative housing comprising several terminal slots corresponding to those of the lower insulative housing and several extension plate received in the sinks;
• a plurality of terminals each comprising a main body, a resilient arm and a solder tail both extending from the main body, the terminals being retained in the terminal slots of the upper and lower insulative housings, the main body being located in the sink of the lower insulative housing and is compressed by the extension plate of the upper insulative housing;
• a fastening member combining the upper and lower insulative housings as an integrating unit.

An electrical connector comprising:

• an insulative upper housing and an insulative lower housing assembled to each other to commonly define a plug receiving cavity therein;
• the lower housing defining a pair of lower side walls;
• the upper housing defining a pair of upper side walls corresponding to said pair of lower side walls;
• a plurality of contacts fixed in one of the lower side wall and the corresponding upper side wall with corresponding contact sections extending into the plug receiving cavity;
• wherein
• the other of the lower side wall and the corresponding upper side wall includes an extension extending toward the said one of the lower side wall and the corresponding upper side wall so as to cooperating with said one of the lower side wall and the corresponding upper side wall to tightly sandwich the corresponding contacts in a transverse direction perpendicular to a mating direction of the connector.