Casti Pioneer SE-MJ751i

Sound: With the 'Bass Level Control' knob, you can control the amount of bass directly on your headphones.A 40 and 30 mm driver unit diameter (adjustable through the Bass Level Control knob) ensures faithful beat reproduction. Fit: Soft, quality padding ensures a snug fit over your head and ears for your listening comfort. Other Features: Their single-sided, detachable cord features an in-line microphone, perfect for making voice memos, activating voice-controlled functions or taking calls on your iPhone