Tus neeg sau xov xwm yog ib tus kws tshaj lij - nws paub ua haujlwm ntawm lub microphone. Thiab yog tias lub microphones dub thiab tawv, nws paub yuav ua li cas sim lawv. Nws zoo li nws tsis cia siab tias yuav muaj dab tsi tshwm sim, tab sis los ntawm qhov zoo ntawm nws, nws nyiam nws. Technically, ob lub microphones ua haujlwm zoo kawg nkaus. :-)
Leej twg xav tau kev sib deev kub?