Sony MDR7506 Folding Professional Closed Ear Headphones
The Sony MDR-7506 Professional Stereo Headphones are perfect for sound monitoring in recording studios, radio, film production, video, and electronic newsgathering. The included stereo adapter plug lets you use the headphones with both 1/4-inch and 1/8-inch enabled devices.  
Construction
The Sony MDR-7506 features a closed-ear design that offers great isolation. The padded ear cups and a generously padded headband make the MDR-75006 headphones comfortable to wear even during prolonged use. Lightweight yet rugged with a convenient folding design, these DJ-style over-ear headphones are extremely durable and portable.
40mm Driver Unit Technology
Thanks to neodymium magnets and 40mm driver unit technology, these headphones offer high-quality sound reproduction. Count on stable signal connection and transmission thanks to its 3.5mm gold connector and a 9.8-inch professional-quality OFC (oxygen-free copper) cord.
Wide Frequency Response
Whether you're the performer or the engineer, a wide frequency response of 10Hz to 20 kHz means that you'll enjoy crystal clear highs, present mids, and extended lows.
Knox Gear Compact 4-Channel Stereo Headphone Amplifier with DC 12V Power Adapter
Designed for performers and musicians who demand mobility without compromising audio quality, the personal headphone amplifier is an excellent choice for driving wired in-ear monitors (IEMs) and headphones.
Studio Professional Four-way headphone amp is ideal for precision listening, mixing, and mastering applications.
Bundle Includes:
Sony MDR7506 Folding Professional Closed Ear Headphones
Compact 4-Channel Stereo Headphone Amplifier with DC 12V Power Adapter
1/8 to 1/4 Inch Stereo Aux Adapter (5-Pack)