Acoustune AEX 07 Ear Tips is based on the Acoustune AETO7 ear gels that have been sold for many years and are very popular among users. The shape of the ear gels has been fine-tuned and the size of the ear gels has been revised after analyzing a large amount of ear mold data obtained from thecustom CM project "ST1000", making it easier forusers to choose the ear gels that fit their ear canals. The ear gel material is easier to fill the ear canal than previous products, and the amount of detail and hearing resistance have been improved.