Wedding speakers are 20 to 30 kilograms. According to relevant public information, the total weight of the mixer is 20 kg to 30 kg to 30 kg, that is, 40 kg to 60 kg. The basic components of the combined sound generally include AMFM tuner and CD player, some of which have a tape deck and two independent speakers, while the more powerful ones add MD player and surround subwoofer, and the CD player is upgraded to DVD player, which is backward compatible for playing other types of optical discs.