Cordless

The term cordless is generally used to refer to electrical or electronic devices that are powered by a battery or battery pack and can operate without a power cord or cable attached to a fixed electricity supply such as an outlet, generator, or other centralized power source, allowing greater mobility. The development of more powerful rechargeable batteries in recent years has allowed the production of battery-powered versions of tools and appliances that once required a power cord, and these are distinguished by the term "cordless", as in cordless drills, cordless saws, and cordless irons.