Sony MDR-ZX110NC Noise Cancelling Headphones

Over-ear,
Noise-isolating Headphones.
Connectivity Technology: Wired
30mm Neodymium Driver.
110 dB/mW – Power off, 115 dB/mW – Power on
Up To 80 Hours Of Battery Life
Frequency response:10-22,000 Hz
Impedance (Ohm)- Power ON 220 ohm, OFF 45 ohm (at 1 kHz)