ATH-M40X

Type    Closed-back dynamic
Driver Diameter    40 mm
Magnet    Neodymium
Voice Coil    CCAW (Copper-clad aluminum wire)
Frequency Response    15 - 24,000 Hz
Maximum Input Power    1,600 mW at 1 kHz
Sensitivity    98 dB
Impedance    35 ohms
Weight    240 g (8.5 oz), without cable and connector
Cable    Includes two interchangeable cables: detachable 1.2 m - 3.0 m (3.9' - 9.8') coiled cable and detachable 3.0 m (9.8') straight cable
Accessories Included    Protective carrying pouch, 6.3 mm (1/4") screw-on adapter