Designed for long-term listening comfort and highly-accurate performance, the Beyerdynamic DT 770 PRO closed-back dynamic headphone is the perfect monitoring headphone for recording studios, post production, or broadcasting applications. Features Closed diffuse field studio headphone Innovative bass reflex system Robust spring steel headband Single sided cable Soft inner headband Gold plated jack plug (3.5mm) and adapter (6.35mm) Outstanding Audio Performance, Unmatched Listening Comfort Boasting outstanding quality suitable for the most demanding professionals and audiophiles, the DT 770 PRO employs a low-mass coil and diaphragm assembly to deliver an impressive transient response usually only found in electrostatic earphones. This, combined with a meticulously tailored frequency response, these headphones deliver a natural and well-balanced sound. Featuring soft earpads, with adjustable sliding earpieces, the DT 770 PRO's single-sided connecting cable offers outstanding listening comfort during extended recording or listening sessions. With 80O drivers and a gold-plated 3.5mm stereo jack and ¼ adapter, DT 770 PRO is compatible with almost any headphone amplifier. Specifications Transducer Type: Dynamic Operating Principle: Closed Nominal Frequency Response: 5Hz - 35kHz Nominal Impedance: 80O Nominal SPL: 96dB SPL Nominal T.H.D.: <0.2% Power Handling Capacity: 100mW Sound Coupling to Ear: Circumaural Ambient Noise Isolation: approx. 18dBA Nominal Headband Pressure: approx. 3.5N Length and Type of Cable: 3m Straight Cable Connection: Gold plated stereo jack plug (3.5mm) and ¼ adapter (6.35mm) Weight (Without Cable): 270g