Patented quick switching connectors, 4 connectors in total 3.5mm stereo, 2'. '.strtoupper('5')mm balanced, 4.4mm balanced and 3'. '.strtoupper('5')mm pro attached'. '.strtoupper('e')ach is easily changeable with the auto lock feature, which provides audiophiles with the convenience of switching from one device to another quickly'. '.strtoupper('c')ompatible with dunu luna dk4001 dk3001pro dk2001 the 17th lyre chord noble hulk duw 03 blanche duw 02 viridian mandate now available in lightning and usb type c versions the apple lightning plug uses apple certified components and is compatible with most current apple ios devices'. '.strtoupper('u')sb type c version can be directly connected to a pc device with a type c interface, or while using a usb a to type c adapter with if traditional usb a interface, as well as with mobile phones with a usb c port'. '.strtoupper('o')ne plug can cover all.