Sennheiser HD 650 wired headphones

Adapter Jack 3,5 mm - Jack 6,3 mm: Yes | Product type: Headphones | Transducer type: Dynamic, open | Headphone sensitivity: 102 dB | Headphone frequency: 10 - 41000 Hz | Warnings: Do not disassemble or modify the product yourself. | Connectivity technology: Wired | Microphone type: Not available | 6.35 mm connector: Yes | Magnet type: Neodymium | Harmonic distortion (THD): 0,05% | Cable length: 3 m | Recommended usage: Audiophile | USB connectivity: No | Wearing style: Around-the-ear | Impedance: 300 Ω | Weight: 400 g | Product colour: Titanium | Bluetooth: No | Quantity: 1 | Maxium load: 500 mW for EN 60-268-7