Home theater units come with 5 speakers that are all separated. Integrated in the main body, you are likely to find a CD player, a cassette player, and a radio-tuner. CD Player Minisystem CD players come as single-loading or may have a changer for 3 or 5 CDs. Although not very common anymore, single-tray CD players are still around. These players only play one CD at a time.
CD changers are a more common feature of minisystems today.
These changers usually hold anywhere from 3 to 5 CDs, play them continuously, and skip CDs too. Some Sony models can hold and store up to 25 CDs. Most changers have special modes where they can be programmed to skip songs on certain CDs. Some players even allow you to open the device and replace CDs while one is still playing. Higher priced models have dual-cassette recorders, allowing you to dub from one cassette to another, and record from audio CD or radio to cassette as well.