Equipped with two full-range speaker units with a diameter of about 48 mm, it achieves high sound pressure that exceeds the size and powerful deep bass. In addition, the size and arrangement of the grill opening has been improved, and the opening ratio has been increased by approximately 14% compared to conventional models. The mid-high range such as vocals has also become clearer. In addition, it is equipped with an "EXTRA BASS" mode that enhances the bass. In addition to enjoying deep bass that exceeds the size, Sony has also introduced advanced high-quality sound technology cultivated by Sony, such as "DSEE," which effectively complements the treble range that tends to be lost with compressed sound sources such as flat-rate distribution services. You can enjoy your favorite music with high sound quality unique to Sony.