This headphone is made by the professional audio brand Sony, uses a dynamic unit, has a 40mm large diameter, and has excellent sound performance. It supports a 3.5mm headphone interface and weighs 110g, which is suitable for long-term wear.
The Pioneer SE-MJ21 EQ is a fully-enclosed dynamic stereo headphone designed with DJ-inspired sound tuning to enhance both high and low musical notes. It features large 40mm drivers engineered for full, accurate performance and includes soft, plush earpads for comfortable listening.
Designed for portability, the headphones feature a folding design compatible with most MP3 players, including iPhone and iPod devices (excluding first generation iPhones). The product is available in White/Pink, Black, and White colors.
The frequency response ranges from 8 Hz to 25,000 Hz.
The maximum input power is 500 mW.
It weighs 110 g (4 oz) without the cord.