In the video, a cat is seen playing with a computer mouse on the floor. The cat is a Siamese breed with a cream-colored body and dark brown ears, face, paws, and tail. The computer mouse is white and appears to be a standard wired model. The floor is a light gray color with darker gray speckles. The cat seems to be intrigued by the mouse, pawing at it and moving it around with its nose. The cat's movements are playful and curious, as it investigates the object with its senses.