Cordless Power Tools

power tools
(power tool) a tool driven by a motor
Used widely in the construction industry, power tools are powered by electric motors, petrol or diesel or via a compressed air motor. There are two classifications of power tools, either stationary or hand-held ‘portables’. Stationary tools are known for their speed of operation and power.

cordless
The term cordless literally means without a cord and 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
A type of phone where the handset is not connected to a device by a cord, allowing the user to move about while placing or receiving a call.
(of an electrical appliance or telephone) Working without connection to a main supply or central unit
not having a cord; "cordless telephone"