keypad
noun [ C ] uk/ˈkiː.pæd/ us/ˈkiː.pæd/
（电视、电话、计算器等的）数字小键盘;（计算机键盘右侧的）辅助键盘
a small set of keys with numbers on them used to operate a television, phone, calculator, etc., or the keys with numbers on them usually found on the right side of a computer keyboard