Nightmare Before Christmas Noise Isolating Earbuds Refresh ( Di-M15NC.FXv2) Provides detailed and dynamic sound with enhanced bass response Detachable ear cushions fit a variety of ear sizes to reduce distracting background noise and provide a quieter environment for undisturbed listening Includes a carrying stylish pouch for added portability and storage convenience Soft ear cushions for added listening comfort and durability in three sizes Connectivity technology: wired