ENHANCED BASS SOUND: Specifically designed to deliver stellar audio quality, this iem earphone provides premium performance. Featuring heavy, impressive driven bass, fast and accurate with quick attack and decay. Full and warm mids with excellent details. Highs are well extended but not overly boosted. You can enjoy authentic live streaming.

ACTUALLY TOTAL 4 DRIVERS: Coming with 2 upgraded balanced armature drivers and 2 dynamic drivers (Sorry there is some mistakes on the package box). The response of BASN Metaled in-ear monitor headphones is from low to high frequency. The iem headphone adds more definition, shows more details, and provides a balanced sound feature.