Sennheiser HD 25 - professional headphones, dynamic, closed

Package contents: Headphones | Warnings: Read the user manual before use. | Harmonic distortion (THD): 0,3 % | max SPL: 120 dB | Warnings: Do not disassemble or modify the product yourself. | Package contents: Adapter 6.35 mm x 1 | Recommended usage: Studio | Headphone frequency: 16 - 22000 Hz | Transducer type: Dynamic | Cable colour: Black | Product colour: Black | Acoustic system: Closed | Weight: 140 g | Connectivity technology: Wired | 3.5 mm (1/8-inch) in: 1 | Product type: Headphones | Wearing style: Head-band | Cable length: 1.5 m | Impedance: 70 Ω | Ear coupling: Circumaural