m12 base 43596-14 with pigtail 40974-01 ,coiled cord ,aa batteries 26609-02 security cover door upc 017229150126 used in very good condition, came out of a working system. connects the following headsets (plnh31, h31n, h41, h41n, h51, h51n, h61, h61n, h81, h81n, h91, h91n, h101, h101n, h132n, h141, h141n, h151, h151n, h161, h161n, h171, h171n, h181, h181n, h251, h251n, h261, h261n, h351, h351n, h361, h361n), all sold separately, to modular telephones, including single and multiline systems. accessory type: na; length: na; width: na; height: na.