In the video, a person is seen holding a small black device in their hands. The device appears to be a type of electronic gadget, possibly a remote control or a small electronic device. The person is using a small screwdriver to unscrew the back of the device. They carefully remove the back cover of the device, revealing the internal components. The person then proceeds to remove the battery from the device. The battery is a small, cylindrical object that is easily removed from the device. The person then replaces the battery with a new one, ensuring that it is properly inserted into the device. The video provides a clear view of the process of removing and replacing the battery in the device.