I-7KW-22K enyuka isikhululo se-sharmado sokusebenzisa ishishini kunye nekhaya, inguqulelo yesokhethi kunye neplagi. Iminyaka emi-8 ye-charmer pile, inokuhlangabezana nazo zonke iimfuno zabathengi ezenziwe ngokwezixhobo zokuhlawula iipile, kubandakanya inkangeleko, uLwimi, iBhodi yeSekethi, kwibhodi yesekelo, njalo njalo. Yenziwe ngokuzimela, eyahlukileyo kwezinye iimodeli ezikhoyo kwintengiso.