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Audio-Technica R70X Professional Open-Back Reference Black Headphones w/ AMP Bundle Includes, FiiO E10K USB DAC and Headphone Amplifier & Slappa HardBody PRO Full Sized Headphone Case (Black) - Walmart.com
Audio-Technica ATH-R70x | R Series Professional Open Back Dynamic Reference Headphone - Reviews | Headphone Reviews and Discussion - Head-Fi.org