... to change the batteries1At the buttom of the mouse,follow the direction of the arrow to push ... ;insert NaNo wireless receiver into the computers USB port,turn on the computer power supply,mouse will working ... 4:to readily the mouse:(a)open the battery case.(b)insert nano wireless receiver inside the compartment ... button again to re-sart the mouse power. 6:if the mouse LED is blinking blue,please replace ...