includes a 3.5mm plug connector that works with the majority of portable electronics, including phones, MP3 players, iPhones, Android devices, and more. A 40mm closed dynamic driver with high precision that produces a clear and vibrant sound field. Long-lasting comfort is made possible by soft ear cushions. Bass response and wearing comfort are enhanced by ear cushions. Response Frequency: 20–22 kHz. Excellent isolation from background noise. strong bass and a dynamic sound output. Length of cord: 2-3 meters. Excellent isolation from background noise, Your voice can be clearly heard over background noise thanks to a noise-cancelling microphone that is rotatable and adjustable.