Features 18 Input/18 Output channels, 2 Mic/Line Preamps with Phantom Power and 8 Analog I/O Two microphone preamps using technology from RME's Micstasy and UFX interfaces TotalMix FX software with the complete Fireface UFX DSP engine, including all effects up to 192 kHz Functions stand-alone •Full 192 kHz operation Audio-Technica ATH-M50x Monitor Headphones feature 45mm Neodymium Drivers and a Detachable Cable Description Product Description Bundle Includes RME Fireface UCX Computer Audio Interface, Audio-Technica ATH-M50X Monitor Headphones and Two XLR Cables.The Fireface UCX from RME is a USB/FireWire digital audio interface that provides thirty-six channels of audio (eighteen inputs and outputs) with all channels available simultaneously. It features two, low distortion, digitally controlled microphone preamps with up to 65 dB of gain, excellent signal to noise ratio, and a flat frequency response. Each channel can be individually switched to deliver 48V phantom power. The black ATH-M50x Monitor Headphones from Audio Technica are designed for use in critical studio mixing and tracking as well as for DJ monitoring applications. They feature 45mm Neodymium drivers with copper-clad aluminum voice coils that provide an extended frequency response from 15Hz to 28kHz. The headphones have a circumaural, around-the-ear design that provides sound isolation in loud environments. The ATH-M50x's ear cups can be swiveled 90-degrees, allowing for single-ear monitoring. The headphones have a detachable single-sided cable system, and a 3-meter coiled cable, a 3-meter straight cable, and a 1.2-meter straight cable are included. When not in use, the ATH-M50x can be folded down and stored in the included carry pouch.