Pioneer SE-MJ21 Specification Guide

Authentic Performance Inspired by Decades of  
Experience as the #1 Professional DJ Brand

Get closer to your music with our professionally-
inspired sound tuning, which heightens the presentation 
and impact of both high and low musical notes.

Large 

Diameter 

Driver

1.2m/3.9’ 

OFC Litz 

Cord

Max Input 

Power

3.5mm 

Mini-plug

Sensitivity

Portable 

Folding 

Design

Type � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � Fully-enclosed dynamic stereo 

headphones 

Impedance � � � � � � � � � � � � � � � � � � � � � � � � � � 32 Ω

Sensitivity  � � � � � � � � � � � � � � � � � � � � � � � � � � � 103 dB

Frequency response� � � � � � � � � � � � � � � � � � 8 Hz to 25,000 Hz

Maximum input power  � � � � � � � � � � � � � � 500 mW

Driver units  � � � � � � � � � � � � � � � � � � � � � � � � � � 40 mm

Cord � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � OFC litz wire, 1�2 m (3�9’)

Plug  � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 3�5 mm 3P mini-plug (gold plated)

Weight  � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � 110 g (4 oz) without cord

SPECIFICATIONS

WHITE/PINK (SE-MJ21-HP)

BLACK (SE-MJ21-K)

WHITE (SE-MJ21-H)