Ukuhola isiqondiso sobuchwepheshe bemboni, ubuchwepheshe bokubona izinto kusengaphambili, imikhiqizo engokoqobo, ngaphezu kwalokho obekulindelwe;
Sima ekuphakameni kwentuthuko yemicro vibration motorimboni.
Thuthukisa futhi udizayine umkhiqizo ngamunye ngombono oweqa okulindelwe ngabasebenzisi.