Sennheiser HD 400 PRO - professional headphones, dynamic, open

Weight & dimensions
Weight: 240 g

Performance
Minimum operating temperature: -15 °C
Recommended usage: Studio
Product type: Headphones
Cable length: 3m / 1,8 m
Product colour: Black
Wearing style: Head-band
Maximum temperature: 55°C
Cable colour: Black

Packaging content
Package contents: Headphones, User manual, Audio cable x 2, Adapter 6.35 mm x 1

Ports & interfaces
Connectivity technology: Wired
3.5 mm (1/8-inch) in: 1

Safety warning
Warnings: Do not disassemble or modify the product yourself., Read the user manual before use.

Headphones
Transducer type: Dynamic
Acoustic system: Open
Impedance: 120 Ω
Headphone frequency: 6 - 38000 Hz
max SPL: 110 dB
Ear coupling: Circumaural
Harmonic distortion (THD): 0,05%