These headphones feature a 40 mm sound driver, a 60000 Hz maximum frequency response and 103 dB audio sensitivity. They have Beat Response Control, delivering a powerful bass effect. Featuring an over-ear design, these headphones give you added comfort for extended listening. These headphones have a foldable design, so you can store them until the next time you use them. They have an inline remote, so you can easily control your device and answer calls while you're listening to your songs, and a microphone for using your phone and operating voice commands.