Model No :Sennheiser HD 203 Headphone
Specifications :
Impedance : 32 Ω
Transducer principle : Dynamic, closed
Ear coupling : Supraaural
Frequency response : 18 ? 18,000 Hz
Sound pressure level (SPL) : 115 dB (1kHz, 1Vrms)
THD, total harmonic distortion : <0.5%
Jack plug : 3.5 / 6.3 mm
Warranty : 6 Months Manufacturer