The black Sony MDR-ZX110AP On-Ear Headphones with Microphone utilize 30mm dynamic drivers to deliver an extended low frequency response of 12 Hz to 22 kHz so you can enjoy all kinds of music on-the-go. For improved portability, the earcups can swivel flat and fold up into a more compact form factor. The 3.9' Y-type cable helps prevent tangles and the universal in-line smartphone remote control and mic enable simple functions such as answering/ending calls and navigating media on your mobile device.