The HS1650 CU is an energetic sounding iem that is capable of producing impactful bass reproduction, lively midrange and extended treble. It boasts great details retrieval and provides an engaging listen. The treble presentation has nice sparkle which contributes to the overall vibrancy. In addition, its unique industrial design gives it a striking look. The packaging has a premium feel and it is very complete with an abundance of quality accessories. The Acoustune HS1650 CU provides a dynamic listen.