Ears are like people – each is unique and different. That's what makes SmartFit such a marvel of user-friendly design. The only multiple-use earplug with Conforming Material Technology, SmartFit uses body heat to adapt to the shape of the ear canal for a comfortable, personalized fit.?Features:??NRR Of 25db?Detachable Cord System?Each Pair Includes A HearPack Case?Size: One Size Fit Most?Color: Orange w/ Blue Cord?