Low-priced approach to In-Ear-Monitoring-systems especially for musicians. Standard in-ear earphones in very small and light shape with good acoustic characteristics. The fitting and wearing comfort can be optimised due to the coupling of a custom-fit earmold. The tone color can be changed individually with five easily exchangeable filters. Cable with 3.5 mm stereo-jack. Cable length between plug and receiver appr. 115 cm.