Behringer Alpha Premium Retro-Style Open-Back High-Fidelity Headphones

FEATURES Audiophile-grade open-back earspeakers with metal grille Ideal for practicing musicians, composers and critical listening High-grade Neodymium 50 mm drivers for extended frequency response (10 Hz - 28 kHz) Open-back design for true sound-stage feel High-quality ultra-soft ear cushions for lasting comfort Premium comfort from self-adjusting headband Optimized performance for use with a wide range of audio devices Convenient detachable 2-sided audio cable stretches up to 3 m (9.8 ft) Gold plated 3.5 mm (1/8") to 6.3 mm (1/4") TRS threaded adapter included SPECIFICATIONS Driver unit     50 mm Impedance     32 Ω Sensitivity     97 dB (±3 dB) Frequency response     10 Hz to 28 kHz Plug     3.5 mm stereo, 6.3 mm gold plated adapter Cable     3 m (9.8 ft)