With painstaking attention to audio performance, the iLuv iCB117 is designed for optimal acoustic delivery. It functions as more than a simple connection for a digital audio device; it's a quality extension of it. Its coiled design resists tangles and is easy to manage. Between the nickel-plated 3.5mm plug, shielded cable and durable connector design, the quality of sound signal is undeniable. Just listen.