Sennheiser HD 400 PRO - professional headphones, dynamic, open

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