Battery operated bathroom mirrors

We are constantly being asked by our customers if a bathroom mirror is available that is powered by batteries. If your bathroom is already completed then sometimes it is not practical for power cables to be added once the walls are tiled. In this instance it is difficult to install an illuminated bathroom mirror. Up to now we have not seen a bathroom mirror that was powered by batteries however in the last few days we have been informed that we will soon have an LED bathroom mirror that will be controlled by a rechargeable battery pack. Would a bathroom mirror like this be of interest to anyone?