Smartwatch - A digital watch that provides many other features besides timekeeping, GPS - A system of satellites designed to help navigation on the Earth, in the air, and on water., Drone - An air object that doesn't have a pilot but is controlled by someone on the ground., Memory Stick - A type of memory card., Headphone - A pair of small speakers used for listening to sound from a computer, music player or other., Washing machine - A machine for washing clothes,etc.,  3D printer - A machine which allows the creation of a physical object from a three-dimensional digital model.,

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