Introducing Crystal Tips. A long lasting memory foam earphone tip. Crystal Tips use advanced materials and ergonomic design to aid your listening experience, your health and your wallet. Crystal Tips prevent your earphones from falling out and also greatly improve comfort. As well as this they can also dramatically reduce background noise, meaning that you can completely remove yourself from the world around you. Crystal Tips are an ergonomically designed, super soft memory foam earphone tip with a flexible silicone core and a protective and antimicrobial film outer layer. Crystal Tips replace the standard and outdated silicone tips that are provided with almost all in ear earphones.