Ukuze sihlangabezane nezidingo zamakhasimende ahlukene, siklama ngokukhethekile imodeli eyongayo nehlala isikhathi eside.
Ngalo modeli, umbhede uboshwe ngethubhu yesikwele esivulekile, esizinzile;nge-spindle epholile ngamanzi, umphumela wokupholisa ungcono, futhi ungasebenza isikhathi eside ngaphandle kwengcindezi;itafula le-aluminium nge-PVC alikwazi nje ukulungisa ipuleti kahle, kodwa futhi livikele itafula;Isistimu yokulawula isebenzisa isibambo se-DSP esingaxhunyiwe ku-inthanethi ukuze isuse ukuncika komshini kukhompuyutha.