Batšoaruoa ba sa tsotelleng, joalo ka karolo ea bohlokoa ea indasteri ea batho ba kajeno le lisebelisoa tse bohlale, ba bapala karolo ea bohlokoa. E ka bona ka nepo le ho fetolela letšoao la khatello ea ntho e lekantsoeng le e fetisitsoeng ea motlakase, e le ho laola liphetoho tsa moruo. Ebang ke ho lekola boemo ba lisebelisoa ho latela lisebelisoa tsa indasteri kapa ho lekola maemo a phetoho ea mali a batho libakeng tsa bongaka, khatello ea phetha karolo ea bohlokoa.

Molao-motheo oa eona oa ho sebetsa o thehiloe ho mefuta e fapaneng ea 'mele e kang phello ea piezolika e kang piezokist. Tsela e 'ngoe e hlakileng, botsitso bo phahameng, karabelo e potlakileng le maemo a matle a maemo a tikoloho ke litšobotsi tse ka sehloohong tsa bathina tsa sejoale-joale. Ka ts'ebetso e potlakileng ea mahlale a kang marang-rang a lintho le lintlha tse kholo, le bophelo bo botle le ntlafatso ea sechaba le ntlafatso ea sechaba.