Content: HP-936 SUPRA 3D  Headphone  Specifications: Driver:Φ 50 mm*2,Neodymium Boron Ferrite Frequency  response :20-23000Hz Total harmonic distortion:<0.2% Dynamic sound pressure:115dB/mW 3D sound effect F1 racing effect  Impedance:32 Ω   Better treble and stronger bass by resonance boxes With microphone and phone answer button best choice to Computer Mobile phone, laptop

product box size:L26cmW23cmH10cm