Isihleke sokudlulisela nokuthumela kwenza uhlelo olungezwa yokusebenzisa izinhlayiya ngokusheshisayo, njengama-motor, imicuba, noma ama-khurini. Isihleke sokuthumela (remote engqondweni, iswitchi sekhanda) sithumela iziqiniso zokuthumelana (RF) noma yesigaba se-infrared (IR), apha isihleke sokudlulisela (esixhunywe kwezinhlayiya) sidlula lezi ziqiniso futhi sibangela ukwenzeka kwemisebenzi (isb., ukuvula ikhala, ukushintsha ikhurini). Le ndlela ayikhankanyi ukudinga ukusebenziswa ngendlela yokuqala, kodwa kuyenza into inca. Okuqukethwe khona kufaka phakathi izinko eziphephethwayo (kwezinhlelo RF) ezokugcina ukuthwalelwa kwezinye i-signal, ukuxhumana okude kakhulu (up to 100 meters for RF), nezindlela eziningi ukuze kubeke amanye amahlelo ngosihleke esodwa sokuthumela. Izinhlelo IR dinga ukujingenela lula kepha kungenzeka kuphela kuzindawo ezincane ngaphakhathi (isb., ama-remote e-TV), apha izinhlelo RF senzekela kudlule emizimbini/ezindleleni. Ama-seti ethu ye-receiver ne-transmitter asimile ukuxokana, noma kunye nezilwanyo eziphambene nokulayisha. Ziyasebenzela nezinhlayiya eziningi, nezinhlelo ezindelekileyo ukusebenza ngemva kala. Uma ungenzeka ukulinganisa ifrequency, umgama, noma ukuxazulula izinkinga eziphathelene nezinye i-signal, qapela ithimba lethu lokuthengisa.