Noise isolating canal design reduces ambient noise for clean, precise audio. Snug fit design for wearability when jogging or during vigorous activity. Lightweight neodymium rare earth magnets for hi-volume sound reinforcement. Available in several vibrant colours perfectly matched to iPod Nano 5G. Includes S/M/L custom fit earpads for all earshapes. 90 day limited warranty | Panasonic Ergo Fit Eardrops in Blue