A cordless or wireless dehumidifier can also be referred in simple terms as a battery operated dehumidifier. These are small units that do not have wires to be plugged into wire extensions. They are very portable and very useful in your small and dark spaces dehumidification processes. You can keep them in your gun safes, wardrobes, RV or car, bathrooms, closets and even around windows to prevent condensation. The main advantage for these units of course is the fact that you can keep them anywhere without the use of wires. However, they are also very cheap. You can avoid the musty smell in your wardrobes or damage to your guns by purchasing one of these. You can find a list of wireless dehumidifiers in our cordless dehumidifier review here.