In some possible implementation solutions, a plurality of intelligent multimedia playback devices 250 of a same type play same multimedia content and have same playback information, and the plurality of intelligent multimedia playback devices 250 are displayed in one playback control card. In this scenario, in a large family, family members in a plurality of rooms can simultaneously watch same multimedia content by using multimedia devices in respective rooms, and playback progresses or volume of the multimedia content in the rooms is the same. In this case, the playback control card can display the volume and the playback progress. In some examples, in a scenario in which family members in a plurality of rooms simultaneously watch same multimedia content by using multimedia devices in respective rooms, playback progresses or volume of the multimedia content in the rooms may be different (for example, a user in a first room prefers high volume, and a television in the first room may increase the volume when playing “Stepping Bravely”). In this case, the playback control card may not display the volume or the playback progress. As shown in