I suspect that most of GODJ users don't know that GODJ can connect with other DJ devices via USB. As you know GODJ can connect with PC/Mac via USB and transfer music files but GODJ is also recognized by other DJ devices such as the Pioneer CDJ-2000 Nexus as a USB device. In short, CDJ's equipped with USB ports can play back music files in the GODJ directly. You can enjoy music or grasp mixing using GODJ everyday. You can use CDJs at the live stage and if anything were to go wrong, you'll be safe since GODJ works as your backup system.