For the most organized JamHub headphone system, these color-coded multi-packs match every unique color that the JamHub unit uses so one can easily recognize what section belongs to which musician. These headphones are super comfortable and sound great. They feature a lightweight design with the ground-breaking IncrediFlex headband – with memory, that allows the player to wear these comfortably for hours. They feature TruSound Tonal Accuracy for superior non-hyped audio fidelity and are environmentally sound with battery-free technology and parts that are easily replaced or repaired. Includes the protective case that the phones neatly fold up into. This is the best way for musicians and students to connect to the JamHub Systems!