Imyaka 18 yibanda kumirasire y'izuba, MC4 ihuza, abafite Fuse, abahuza ububiko bwingufu, insinga za charge zishyirwaho nibindi. Ibigo byacu birimo Witproton, Triproton, na Trisinger.
Shakisha ubushishozi kubijyanye no kubika ingufu zumwuga hamwe na batiri ya lithium yo kwishakamo ibisubizo