1. Support call unimpeded.
2. Compact size flexible and portable.
3. Ergonomic design comfortable to wear.
4. Fashion simple and elegant.
5. Exquisite craftsmanship and fashion appearance.
6. Built-in microphone support volume up / down & next song / previous song & play / pause.
7. Portable and handy easy to carry.
8. Smart noise reduction brings pretty good listening experience.