The X20 has a detailed yet clean sound which is able to deliver punchy bass, transparent midrange and extended treble. There is nice crisp and sparkle to inject excitement into the sound. Moreover, with bluetooth 4.1 bi-directional transmission and the HiBy link, there is an added convenience. There is a solid construction of its housing. The X20 is Xduoo’s latest flagship player and it excels in a spectacular manner.