Bundle Includes: Pioneer Pro DJ Bundle with DDJ-400 + DM-40 Set + HDJ-X5 Headphones Club Style layout similar to that of the CDJ-2000NXS2 and DJM-900NXS2, Built in sound card with plug and play connectivity via USB cable, Includes Rekordbox DJ license key Frequency Range: 20 - 20000 Hz. Software System Requirements-Mac- macOS Mojave 10.14 (Updated to the latest version), macOS High Sierra 10.13 (Updated to the latest version), macOS Sierra 10.12 (Updated to the latest version), OS X 10.11 (Updated to the latest version). Windows- Windows 10/ 8.1/ 7 (latest service pack) The compact DM-40 desktop monitors bring excellent audio quality to your home setup. They inherit the best from our professional S-DJX series and Pro Audio speakers, including a front-loaded bass reflex system for a rich, tight bass and DECO technology for a wider reach and sweet spot. HDJ-X5 Over-Ear DJ Headphones (Black) Hear your tracks loud and clear in the booth and on the move with the HDJ-X5. By taking on board feedback from DJs and analysing many different styles of monitoring, we’ve made sure our new DJ headphone range includes all the features needed for performing at every level. Thanks to the high-quality audio design inherited from our previous professional DJ headphones, you can enjoy distortion-free monitoring, even at high volumes, wherever you go.