Sennheiser HD 300 PRO - professional headphones, dynamic, closed

Length: 245 mm Height: 84 mm Width: 187 mm Weight: 297 g Product colour: Black Storage relative humidity (H-H): 0 - 90% Product type: Headphones Recommended usage: Studio Cable length: 1.55 m Cable colour: Black Wearing style: Head-band Minimum operating temperature: -15 °C Folding design: Yes Maximum temperature: 55°C Package contents: Adapter 6.35 mm x 1 3.5 mm connector: Yes Connectivity technology: Wired Warnings: Read the user manual before use. Impedance: 64 Ω Ear coupling: Circumaural Headphone frequency: 6 - 25000 Hz Acoustic system: Closed Headphone sensitivity: 108 dB +/- 3 dB Transducer type: Dynamic max SPL: 123 dB Noise reduction level: Up to 32 dB Harmonic distortion (THD): 0,1%