I-utility model ikwenzela ekuphatheni kwesakhiwo somshini wokushayela, futhi iyatholakala isakhiwo somshini wokushayela ngokwesakhiwo. Umphetho wokuqala womthwalo uthiwe ekukhishweni kwesikhala esikhishwe, futhi emva kwalokho umthwalo wokuqala uthiwe ukufaka umthwalo wokuqala kanye nesikrini ekhishwe ekhishweni, futhi isikhala sikhishwe futhi sikhishwe ekupheleni kwesikhala somshini wokushayela, ngakho kwenza ukufaka isikrini kube kuhle kakhulu. Uma isikrini esikhishwe ekhishweni sikwala futhi kufanele kube kushaywe, ukufaka isikrini kuhle kakhulu. Ngakho, umshayeli kufanele angeneze isikhala somshini wokushayela kanye nesikhala somthwalo, futhi emva kwalokho athwale isikhala somthwalo, ukuze isikrini sicwenge kahle kakhulu ukuze kwenziwe ukwenza imfundo, okwamanje kwenza ukwakhiwa kanye nokuthengiswa kwezikhungo kube kuhle kwezikhungo.