1 · The new open design breaks the inherent structure of traditional earbuds

2 · The professional version has the same design but has a more affordable price.

3 · The earplugs that do not enter the ear canal are more comfortable to wear.

4 · Colorful glass design, the whole earplug can be easily held with one hand.

5 · JL chip, lower power consumption, lossless analysis of sound quality.