Mostly it is 6,35 mm jack connector and the microphone is XLR female. But amps can also need XLR on both sides. It depends on the device where you want to plug it in. Here is a cable with jack and XLR: https://www.kirstein.de/Zubehoer-Mikrofonkabel/Pronomic-Stage-XFJ-5-Mikrofonkabel-XLR-Klinke-5-m-Schwarz.html - and here you have a cable with XLR on both sides: https://www.kirstein.de/Zubehoer-Mikrofonkabel/Pronomic-Stage-XFXM-5-Mikrofonkabel-XLR-5-m-Schwarz.html