Type: Open Air, dynamic Driver Unit : 40mm diameter, dome type Power handling facility: 50 mW Impedance: 32 ohms at 1kHz Sensitivity: 108dB/mW Frequency Response: 12-220 Hz Cord: 1.2m with stereo mini plug Mass: Approx.n125g without cord. Supplied accessories: Earpads (2) Built-in microphone, soft and flexible ear hooks, ideal for sports or gym. Legendary sound, high quality sound brings you a dynamic audio experience. Noise reducing microphone, stereo with noise reducing function. High quality microphone, AMR-WB ( Adoptive Multi-Rate-Wideband increase the frequency.