... screen+5.1 inch button laser screen3.Modular Design of inner structure, which enhances the stability ... play and plug,easy connect,if handle broken,just send handle back is ok5.In order ... suit for your operation, our handle use humanized design,two botton(one on top,one on side ... request---Special outer shell also can be design.---Unique package also can be met. Jiatailonghe(Beijing)Technologies Co.,Ltd ...