CALJ12 is a 12 cm audio cable with a LEMO 3-pin connector on one end and a female 3.5 mm jack on the other. It serves analog audio connections between compatible Wisycom devices, including MTP40S, MTP40S-UN, MTP41S, MTP41S-UN, and MTP51-JP. The product description notes the cable length and connector types; other details such as shielding, jacket material, weight, and electrical specs are not documented on the source page.