Open Box - Products in Excellent condition little physical flaws, scratches or scuffs. Item has been handled for inspection - Please anticipate signs of handling (fingerprints, lint, etc.) Please view ALL pictures. Items packaging may have cosmetic damage - does not affect the item. Includes all items seen in pictures ONLY. Actual item pictured. Product Description SURROUND SOUND - This Headphone Amplifier has a binaural rendering engine with EPOS-engineered 7.1 Surround Sound for your ultimate audio experience. EASE OF USE - Switch between headphone dac sound and speaker sound without tapping or unplugging cables. The EPOS GSX 1000 2nd Edition can also easily be used as a pc sound card or as an external sound card ADJUSTABLE SIDETONE - This DAC amp audio amplifier will also work as a sound card for pc with a sidetone, so you can hear your own voice in real time at a level you set EXCEPTIONAL CONTROL - Enjoy precision control of your game audio with a dedicated usb c dac chip and EQ presets for story, music and more. It's also great for gaming as it is a dac amp combo BUILT FOR COMPETITIVE GAMING - Aluminum volume wheel and high-quality materials are designed to last. It can also be used as an audio mixer for pc