It is a portable recorder that combines a CD player and a cassette player. The device features a Sound Virtualizer to expand the sound range and add depth. This model can play MP3 discs recorded on CD-R/RW discs. The prices of this device in the used market vary based on its operational condition. This device is the Sony CFD-S07CP, a portable recorder that combines a CD player, AM/FM radio, and a cassette player. The device features a compact design and stereo speakers, and can be powered by batteries or mains electricity. The device also includes an Audio-in port for connecting external devices such as smartphones or MP3 players.