Zikafika pamakiyi a rabara, kuwonetsetsa kuti magwiridwe antchito ndi olimba ndikofunikira.Ma keypad a rabara amagwiritsidwa ntchito kwambiri pazida zosiyanasiyana, monga zowongolera zakutali, zowerengera, ndi zida zamagetsi.Komabe, pakapita nthawi, ma keypads amatha kung'ambika, zomwe zimapangitsa kuchepa kwa magwiridwe antchito.