Revolutionize your portable listening Now you can have your sonic revolution and carry it easily too. The new JBL Synchros S300 breaks from traditional headphone design. Lightweight, yet durable, with a steel headband and leather ear cushions, the S300 is comfortable for hours of listening. Modeled after the same JBL sound systems used in the world’s most prestigious clubs, the S300 delivers a balanced audio experience with amazing clarity and deep, powerful bass. The earcups rotate and fold in for simple, compact storage. Available in 6 colors, the S300 is compatible with both iOS and other Smartphones.