Open back headphones have perforations or vents on the earcups, allowing sound to pass through and blend with external noise. They offer a more natural and spacious soundstage, but at the expense of noise isolation and sound leakage. Closed-back on-ear headphones, on the other hand, have a sealed earcup design that blocks out external noise and prevents sound leakage. They offer more bass and intimacy, but can feel claustrophobic and hot after prolonged use. The choice between open-back and closed-back on-ear headphones depends on your listening preferences and environment.
