Pioneer Headphone SE-MJ541 K Black

40mm diameter speaker 

Equipped w/ CCAW voice coil. 
Weight :115g 
Specification: 
Type: Sealed dynamic 
Output sound pressure level: 105dB 
Connecting cord: 1.2m two-parallel 
Maximum input (JEITA): 1200mW 
Plug: 3.5mm stereo mini-plug (gold plated) 
Use unit: 40mm 
Play frequency band: 9Hz - 30000Hz 
Impedance: 32 ohms 
Two-parallel code 
OFC code 
L-type plug 
Instruction manual