GENUINE and ORIGINAL Packing same as Pictures.
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● The low-frequency reproduction by POWERFUL BASS duct, play the bass powerful rich and realistic 
● The powerful sound with a large diameter 40mm unit 
● length adjustment is the Freer just head band system of unnecessary, 
Can be installed in the appropriate position smoothly 
● comfortable wearability by type leather ear pads 
● Convenient 3.5m cord out pieces for viewing away from the screen 
Model SE-M521 
Model Sealed dynamic stereo headphone 
Playback frequency 7 Hz ~ 40 000 Hz 
Impedance 32 Ω 
(JEITA) 1 200 mW maximum input 
Output sound pressure level 97 dB 
Use unit φ 40 mm 
Plug (gold-plated) φ 3.5 mm stereo mini plug 
Code length piece out 3.5 m 
(Excluding cord) 220 g Weight 
Accessories φ 6.3 mm stereo 
Plug adapter (gold-plated) 
Sealed dynamic stereo headphone