Open Box Stock in excellent condition, comes with all accessories, original packaging and full warranty.The ADAM Audio STUDIO PRO SP-5 headphones are the result of collaboration between two engineering-focused German companies, ADAM Audio and Ultrasone. Both firms are run by professionals who are passionate about creating products that offer the best possible audio reproduction. During the product’s design, the ADAM SP-5’s components were carefully selected, iteratively re-voiced and tuned, and changes were made to its diaphragm and housing based on direction from ADAM Audio’s engineers, until the headphones’ sound and tonality was right and carrying the renowned ADAM Audio sonic signature.The first headphones in ADAM Audio’s portfolio incorporate technology such as Ultrasone S-LOGIC ® Plus, and were designed for high-precision audio reproduction with maximum passive isolation, low ear fatigue, and seamless transition between our headphones and studio monitors as well as maximum comfort.