Audio-Technica ATH-M50x Professional Headphones I purchased these for recording a month ago, but I haven't had a chance to use them, so I'm selling them in almost new condition. Please check the photos. Thank you. Specifications - Brand: audio-technica - Model Name: ATH-M50x ATH-M50x WH (White) Brand: Audio-Technica Structure: Closed-back Wearing style: Both ears, integrated left and right Earphone/Headphone type: Headband type Color: White系 Earphone/Headphone features: Foldable, Removable cable Low-frequency response (Hz): 15.0 Hz High-frequency response (kHz): 28.0 kHz Wireless/Wired connection: Wired connection Drive type: Dynamic type Plug shape: Standard plug/Mini plug Impedance (Ω): 38.0 Ω Sound pressure sensitivity (dB): 99.0 dB Driver size (mm): 45.0 mm Cord length (m): 3.0 m Weight (g): 285.0 g