Wedding DJs and discos provide music and entertainment for wedding receptions, helping to create an atmosphere for dancing and mark key moments in the celebrations. They usually discuss the couple's preferences in advance, including musical styles, favourite tracks, songs to avoid and the order of events. Music may be selected and mixed live from a prepared collection, with requests from guests considered where appropriate. Services commonly include supplying and setting up sound equipment, microphones and dance-floor lighting at the venue. DJs may make announcements for events such as the newlyweds' entrance, speeches, first dance and cake cutting, and coordinate timings with the couple or venue staff. Some also provide background music during a reception or offer additional equipment such as uplighting, screens or photo booths. The facilities available and the level of hosting vary, so arrangements are typically agreed as part of the booking.