Open Air Type- YES Dynamic Type- YES Circum Aural Type- NO Capacity (mW)- 100 Driver unit (mm)- 13.5 (Dome Type) Diaphragm- PET Frequency (Hz) - 18 - 22,000 Sensitivity (dB/mW)- 104 Magnet- Neodymium Impedance (Ohm) - 16