Sony's MDRZX310APB lightweight foldable wired headphones are a must have, with 30mm neodymium for a more powerful & more balanced sound output. With comfortable padded earcups, experience a broad frequency from 10 Hz to an incredible 24, 000 Hz. On top of all these specs the MDRZX310APB feature a microphone & volume control & a 4-conductor gold-plated 3.5mm stereo mini-jack.