Sennheiser IE 600 – Professionally Inspected, Complete Accessories, Excellent Condition (Inspection Date: August 15, 2025) ⸻ Peace of Mind with Professional Inspection This product has undergone professional inspection, confirming that the appearance, operation, and sound quality are all in top-rank condition. Impedance measurements and channel balance test results are also excellent. You can enjoy the best sound quality immediately after purchase. ⸻ Full Set of Accessories • Outer box, warranty, instruction manual (Manufacturing date: 2023/5/11) • MMCX cable • 3.5mm unbalanced cable • 4.4mm balanced cable • Ear tips of various sizes (foam/silicone) - New • Dedicated carrying case ⸻ Exterior Condition • Housing: No scratches, dents, or discoloration • MMCX connectors: No wear • Cables: No breaks, tears, or rust ⸻ Operation and Sound Quality Check Results • Impedance measurement: R = 16.6Ω / L = 16.6Ω (Within specifications, no left/right difference) • Frequency sweep test (20Hz〜20kHz): No distortion or noise • High frequencies: Clear and not harsh • Mid frequencies: Vocals and instrument sounds are clear • Low frequencies: Stable without muddiness ⸻ Other • Alcohol cleaned • New ear tips • Quick shipping via Mercari (anonymous delivery) ⸻ The new retail price of this model is approximately 110,000 yen. Considering the condition and completeness of the accessories, this is a very good deal. Please take this opportunity to acquire the reliable and inspected IE 600.