mini vehicle computer clock memory saver car repair data keeper battery backup unit automotive 9 volt all-sun gk504

this product can be used to keep your personal settings of your vehicle when you replace the vehicle battery. you can use it to keep the settings of alarms,present radion stations,clocks,anti-theft radion,present seat positions,keyless entry systems,mobile phones,and other memory related functions. when using this product, plug it into the 12v cigarette lighter socket.