Its ergonomics lab offers a choicee of 10 different keyboards and 15 different pointing devices ( including a foot - operated mouse for those with severe hand pain and a voice - activated system for workers who can ' t use their hands at all ) 该公司的人体工程学实验室向员工提供10种不同的键盘以及15种不同的定点设备(包括一种针对手部疼痛的工作人员设计的脚动鼠标以及一种针对根本无法用手的工作人员设计的声控系统) 。