In this video, a person is seen holding a yellow multimeter and using it to check the voltage of a car battery. The person is wearing a ring on their left hand and has a red and black wire attached to the multimeter. They are using the red wire to touch the positive terminal of the battery and the black wire to touch the negative terminal. The person is looking at the screen of the multimeter to read the voltage. The video provides a close-up view of the person's hands and the multimeter, making it easy to see the details of the process.