Package Includes: (1) Beyerdynamic DT-990-PRO-250 Open Back Studio Reference Monitor Headphones(1) Rockville PRO-M50 Studio Headphones+Detachable Coil Cable+Case+Extra Ear Pad Authorized Beyerdynamic Dealer! Description of DT-990-PRO-250: The DT 990 PRO is an open dynamic headphone for studio applications. Due to a weight reduction of the diaphragm an excellent sound reproduction quality is achieved. Its rugged design with a spring steel headband ensures a secure fit and withstands all demands. Soft headband and ear cushioning systems ensure a high comfort over long periods of time. Features: DT 990 PRO Professional Open Back Dynamic Monitoring Headphones Open diffuse-field studio headphone Professional version of the many times awarded “DT 990” Extremely lightweight diaphragm for superb impulse performance Excellent sound reproduction Comfortable fit due to rugged adjustable soft padded headband construction Robust easy serviceable construction as all parts are replaceable Single-sided cable Velour circumaural ear pads Transmission type : Wired Headphone design (operating principle) : Open Headphone impedance : 250 ohms Headphone frequency response : 5 - 35.000 Hz Nominal sound pressure : 96 dB Construction : Circumaural (around the ear) Cable & plug : Coiled connecting cable with mini-jack plug (3.5 mm) & ¼“ adapter (6.35 mm) Net weight without packaging : 380 g PRO-M50 headphones Detachable cable Soft suede and leather ear cushions (interchangeable) Leather hard travel protective case Gold plated ¼” adapter Amazing sound quality will make these your go-to headphones whether in the studio or out and about! Features of Rockville PRO-M50 Studio Headphones: Rockville PRO-M50 Studio Headphones w/ Detachable Coil Cable Case+Extra Ear Pad Professional High-Definition Studio Headphones 40mm Neodymium drivers Ergonomically designed swivel ear cups Supreme sound isolation Accurate sound reproduction Minimal bleed Sturdy and durable steel headband and arms Soft leather headband cover Interchangeable leather and soft suede ear cups covers included Detachable 51” coil cable made of 100% Oxygen Free Copper (158” fully extended) Gold plated 3.5mm connector Gold plated ¼” adapter Hard leather carrying case Stainless steel headband frame and moving arms are durable and long-lasting Specifications: