Gukwirakwiza urumuri rw'igikombe, Guhitamo kubigaragaza guhuza cyangwa kudahuza ubwoko butandukanye bwibisabwa;Hejuru ya decibel ceramic buzzer chip hamwe na chip idasanzwe yo gutwara imashini byemewe kugirango bisohore neza kandi byumvikane neza;Ibyuma bidafite ingese cyangwa plastike, bitazabora kugeza kumyaka 3.
Kelly 
