Sennheiser HD 490 PRO - professional reference open-back studio headphones

Harmonic distortion (THD): 0,2% | Maximum temperature: 50°C | Weight: 260 g | Wearing style: Head-band | max SPL: 128 dB | Acoustic system: Open | Included software: DearVR MIX-SE | Recommended usage: Studio | Impedance: 130 Ω | Minimum operating temperature: 0 °C | Ear coupling: Circumaural | Cable length: 1.8 m | 3.5 mm connector: Yes | Product colour: Black | Connectivity technology: Wired | Product type: Headphones | Cable colour: Black | Driver diameter: 38 mm | Folding design: Yes | Warnings: Do not disassemble or modify the product yourself. | Package contents: Head pillows x 2 | Warnings: Read the user manual before use. | Transducer type: Dynamic | Package contents: Headphones | Package contents: Adapter 6.35 mm x 1 | Headphone frequency: 5 - 36000 Hz | Package contents: Audio Cable x1