Beyerdynamic DT 770 PRO 250 Ohm Overview:The DT 770 PRO is a closed dynamic headphone of exceptional quality suitable for the most demanding professional and audiophile applications. The long term comfort and accurate performance make the DT 770 PRO the perfect monitoring headphone for recording studios, post production or broadcasting situations. The low mass coil and diaphragm assembly produce a transient performance equalled only by electrostatic earphones, and, in combination with a carefully tailored frequency response offer a natural and balanced sound.The DT 770 PRO features 250, 250 or 250 ohm drivers and a gold plated 3.5 mm stereo jack with 1/4" inch adapter, and is therefore suitable for use with almost all headphone amplifiers. Soft earpads and adjustable, sliding, earpieces together with a single sided connecting cable ensure listening comfort during extended periods of use.PRODUCT SPECS:Nominal SPL: 96 dB SPLNominal Impedance: 250ΩTransducer Type: DynamicOperating Principle: ClosedFrequency Response: 5-35,000 HzTotal Harmonic Distortion: < 0.02%Nominal Handling Capacity: 100 mWSound Coupling to the Ear: CircumauralWhat's In The Box:1 x Beyerdynamic DT 770 PRO 250 Ohm Headphones1 x Beyerdynamic Drawstring Bag1 x 5ft Headphone Extension Cable1 x 6.35mm (1/4") Stereo Jack Plug1 x 1.6m Straight Stereo Cable1 x 3.5mm Headphone Splitter1 x Microfiber Cleaning ClothWarranty Coverage:2-Total Years of Protection for Your New Device | Bundle | | Beyerdynamic | DT 770 Pro 32 Ohm Headphones with Splitter and Extension Cable | Black | Best Buy