TESTED Eartec UL2S UltraLITE-HD 2-PERSON WIRELESS INTERCOM SET — SET 9. • Eartec UL2S UltraLITE-HD system. • 1 Eartec UltraLITE-HD Single-Ear MAIN/MASTER Headset. • 1 Eartec UltraLITE-HD Single-Ear REMOTE Headset.