In the video, a person is holding a smartphone in their hand and speaking to the camera. The phone screen displays a call interface with options such as mute, keyboard, speaker, contacts, and add call. The person appears to be demonstrating how to use these features on the phone. The background is not clearly visible, but it seems to be an indoor setting. The person's attire is not clearly visible, but they appear to be wearing a dark-colored top. The smartphone seems to be a modern model with a large screen and a black bezel. The person's facial expressions and hand movements suggest that they are explaining the call interface in detail.