High efficiency and low distortion deliver unrivaled sound quality. View larger Compact Tesla Sound Like its award-winning predecessor, the beyerdynamic T50p, the focus for design of the new T51p is delivering unrivaled sound quality. With new and improved drivers the headphones deliver in an inspiring way—right from the first moment. A particularly deep bass response and transparent, clear highs are apparent from the T51p due to the common properties that make all Tesla headphones so special: high efficiency and low distortion. The result is a clear, powerful sound across the entire frequency range, even at low levels. The closed design of the T51p also isolates external noise very effectively. Key Features: Closed-design headphones perfect for mobile use Excellent ambient noise attenuation Signature beyerdynamic Tesla driver technology with high efficiency Swiveling earcups (90°) for DJ or monitoring applications Headphone impedance: 60 ohms Frequency response: 10Hz - 23kHz Straight connecting cable with mini-jack plug (3.5 mm) & 1/4" adapter (6.35 mm) Featuring 90° swiveling earcups. View larger High Quality and Elegant Looks The shiny beyerdynamic logo on the housing caps stands in sharp contrast with the brushed metal surfaces of the ear-cups. The cable has also been improved to be more stable and has a satin finish which results in less cable noise. A light champagne tone lends the headphones a very elegant appearance and raises the T51p above the plastic monotony of most—even more expensive—headphones with its all-metal construction. The Tesla technology developed by beyerdynamic provides an extraordinarily precise and detailed sound—even when using mobile devices on the way to work or while traveling. The T51p can be connected to mobile phones, MP3 players, and tablet PCs. Due to superior materials the T51p opens up new sound dimensions and features an excellent bass and treble reproduction. With its closed design the T51p shields the listener against ambient noise. Rugged nylon carry case included. View larger Perfect to Wear, Practical to Travel With its metal fully-adjustable headband and swiveling ear cups the T51p fits perfectly on your head and confirms beyerdynamic"s long-established reputation for producing headphones with excellent wearing comfort. The ear pads made of super-soft synthetic leather fit the contour of the outer ear thanks to its viscoelastic filling (a memory foam). Thanks to the swiveling ear cups the T51p folds up compactly and fits in the included rugged nylon carry case. A high-quality 6.35 mm adapter is included for listening on premium hi-fi equipment or headphone amplifiers, an airplane adapter is also included so you can enjoy a superior experience of in-flight entertainment.