Closed dynamic headphones, ideal for professional monitoring, smooth audio reproduction with deep bass, closed circumaural design, isolated against ambient noise, extremely soft and flexible comfortable padded ear cushions, compatible with all brands of smartphones and tablets, neodymium magnet, driver 45 mm, frequency range: 15 – 28,000 Hz, SPL: 98 dB, power 1,800 mW, impedance 40 ohms, 3.5 jack connector and 6.3 mm adapter, 3 meter cable, weight (without cable): 235 g.