In the video, a person is holding a white card with the words "NH4+" written on it. The card is held up to the camera, and the person's face is visible in the background. The person is wearing a black shirt and has short brown hair. The background is a green wall with a picture hanging on it. The person is holding the card with their right hand, and the card is slightly tilted to the left. The video is shot in a well-lit room, and the focus is on the card and the person's hand.