Compatible with ISOtunes PRO (IT-01/IT-03/IT-08), ISOtunes Xtra (IT-02/IT-07) and ISOtunes Wired (IT-04).ISOtunes TRILOGY Foam Replacement Eartips offer a trifecta of benefits for optimal hearing protection:

- Superior comfort - super soft memory foam- Superior attenuation - made from the best materials available to reduce outside noise- Superior sound - durable core material that will not distort sound/music quality

Choose between Extra Small (white core), Small (green core), Medium (black core) and Large (blue core). All orders come with 5 pairs.