Ib puag ncig uas muaj ntau yam khoom siv hluav taws xob / hluav taws xob ua haujlwm tib lub sijhawm tuaj yeem tsim teeb meem vim muaj hluav taws xob hluav taws xob los yog vim muaj hluav taws xob cuam tshuam (EMI). Lub suab nrov hluav taws xob tuaj yeem cuam tshuam qhov tseeb ntawm txhua yam khoom siv.