Comes with 3.5mm plug connector which is compatible with most of the portable devices like handsets, MP3 players, Iphone, Android etc High precision 40mm closed dynamic driver which bring you vivid clear sound field, sound clarity. Soft ear cushions allow for long-wearing comfort.Ear cushions improve wearing comfort and bass response. Frequency Response:20- 22 Khz.Splendid ambient noise isolation.Powerful bass & dynamic stereo output. Cord length: 2-3m. Splendid ambient noise isolation, Noise-cancelling microphone, adjustable and rotatable noise cancelling microphone can accept your voice clearly without confounding environmental noise