You got to equip it (same screen but right option 'use an item' at the museum where you assembled it before).
When it is equiped, you get an extra option during cock fight. Click that option and click at buzzer (no matter what you click, you get 105%). That's why bot is a good option for players with buzzer problems (for example because of playing with a smartphone / tab)
Bot will disappear after 7 days and the extra option is then gone too.
