Closed reference headphone for control and monitoring applications. The DT 770 PRO is a closed dynamic headphone which has been designed for critical music and sound monitoring. The single-sided cable makes the handling of the headphone easy.The world famous DT770 Pro Headphones deliver unmatched quality in sound reproduction at an incredible price. No matter your application, tracking, mixing, critical listening, even gaming, your DT770's will deliver sound you can rely on - every time.Sound - Unique design, construction and innovation give the DT770's superb sound reproduction across all frequencies. Custom built diaphragms in our production facilities in Germany deliver consistent performance to the listener.Quality - DT770's have proven after over 30 years of use in the best studios and sound stages around the world that they perform to the highest level every time. Made to Measure from Germany.Reliability - DT770's are ruggedly built to last, yet lightweight and comfortable to wear over long periods. The Made in Germany quality promise applies to product development and manufacture: the designs of beyerdynamic engineers and designers in Heilbronn are then built by approximately 180 highly qualified employees in Germany - mostly by hand.All products and key technologies are developed in Germany at the company headquarters in Heilbronn. Instead of outsourcing design assignments or purchasing finished solutions from third-party manufacturers abroad, beyerdynamic retains the know-how of its personnel in-house.