The closed Behringer HPM1100 headphones offer everything users need for comfortable listening. The 40 mm dynamic drivers reproduce every nuance of sound over a frequency range of 20 to 20000 Hz. The HPM1100 can be used for studio sessions or simply to enjoy your favorite music. The over-ear design, with a secure fit and adjustable, padded headband, makes it a reliable companion that can easily be worn for hours without putting too much strain on the ears.