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BackHroparts Elec PJ-320D-4A (https://datasheet.lcsc.com/lcsc/1810121716_Korean-Hroparts-Elec-PJ-320D-4A_C95562.pdf smt female jack horizontal PJ311 6pin SMD 3.5mm headphones jack plug stereo 3.5mm PJ311 Headphones with microphone connector, 3.5mm, 4 pins (http://www.qingpu-electronics.com/en/products/WQP-PJ320E-177.html PJ31060-I 6pin SMD 3.5mm stereo headphones jack. Headphones jack plug stereo 3.5mm PJ31060-I PJ31060 TRS 3.5mm, horizontal, through-hole, , circular holeshttps://www.cui.com/product/resource/sj1-353xng.pdf TRS audio jack stereo horizontal waterproof 6.35mm (1/4 in) Vertical Jack, 2 Poles (Mono / TS *(optional) SIP socket, 2.54 mm, 1x10 Pin socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x10 Pin socket, 2.54 mm, 1x10 | | | | Q1, Q2, Q3 | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling)"/>