The Audio-Technica ATH-M20x wired headphones in white are professional monitor headphones designed for studio tracking and mixing. Below are their key features and specifications:

Design and Build:

• Type: Closed-back, over-ear (circumaural) design that contours around the ears for excellent sound isolation in loud environments.
• Color: White.
• Materials: High-quality materials ensure durability and comfort during extended use.

Audio Performance:

• Driver Diameter: 40 mm dynamic drivers with rare earth (neodymium) magnets and copper-clad aluminum wire voice coils.
• Frequency Response: 15 Hz to 20,000 Hz, providing a wide range of sound reproduction.
• Sensitivity: 96 dB/mW, ensuring clear and detailed audio output.
• Impedance: 47 ohms, suitable for use with a variety of audio equipment.
• Maximum Input Power: 700 mW at 1 kHz.

Connectivity:

• Cable: 3.0 meters (approximately 9.8 feet) straight cable exiting from the left side, offering ample length for studio or home use.
• Plug: 3.5 mm (1/8") gold-plated stereo mini-plug.
• Adapter: Includes a 6.3 mm (1/4") snap-on stereo adapter for compatibility with various audio devices.

Physical Specifications:

• Weight: Approximately 190 grams (6.7 ounces) without cable and connector, making them lightweight and comfortable for prolonged sessions.

These headphones are tuned for enhanced low-frequency performance, making them an excellent choice for tracking and mixing. The circumaural design provides effective sound isolation, allowing for focused listening in noisy environments.