3P XLR FEMALE CONNECTOR WITH COPPER PIN COPPER PLATING CONTACT, ENSURE ITS INSERTION WITHDRAWAL FORCE AND LIFE CYCLE GROUND PLATE WITH SPECIAL PLATING ,ENSURE PRODUCT PERFORMANCE AND EASY TO SOLDER GROUNDPLATE WITHSPECIAL PLATING ,ENSURE PRODUCT PERFORMANCE AND EASY TO SOLDER INSULATION RESISTANCE: >2000 OH MDI ELECTRIC STRENGTH:AC250V50Hz