The SENNHEISER's HD25 LIGHT is a closed-back on-ear dynamic headphones. This audio monitoring headphones are designed for use while recording or monitoring music, and they may also be used outside, making them excellent for DJs. They're supposed to sound comparable to Sennheiser's popular HD 25 model, but at a cheaper price range and with a lighter weight (120g). The headphones have a frequency response of 16 Hz to 22 kHz and can produce a maximum SPL of 120 dB. The removable and interchangeable dual-sided cable is included. Although a 1/4" adapter is included, it terminates in a 3.5mm connection.