Sennheiser HD 400 PRO - professional headphones, dynamic, open

3.5 mm (1/8-inch) in: 1 | Connectivity technology: Wired | Package contents: User manual | Package contents: Audio cable x 2 | Warnings: Do not disassemble or modify the product yourself. | Headphone frequency: 6 - 38000 Hz | Minimum operating temperature: -15 °C | Impedance: 120 Ω | Recommended usage: Studio | Acoustic system: Open | Package contents: Headphones | Wearing style: Head-band | max SPL: 110 dB | Package contents: Adapter 6.35 mm x 1 | Ear coupling: Circumaural | Weight: 240 g | Harmonic distortion (THD): 0,05% | Maximum temperature: 55°C | Product type: Headphones | Warnings: Read the user manual before use. | Cable colour: Black | Product colour: Black | Transducer type: Dynamic | Cable length: 3m / 1,8 m