Sennheiser HD 550 Open-Back Over-Ear Headphones (Open Box) best headphones What is the True Isobaric™

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your music remains pristine and your calls crystal clear

Power Supply: 12V 500mA

Compatible with high-quality Qualcomm® aptX™ Adaptive audio

capable of double-precision 64-bit floating-point calculations and runs at a high 360MHz clock frequency

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