The optional Yapalong 4000 open mic "Boom Mic III" headset is a combination of great sound quality and wear comfort. In-ear tip can effectively block noise while provide good volume. It has 3 customization / adjustment features


Ear mount: left ear or right ear

Concha support: short or long

In-ear tip: small, medium, or large.

Yapalong Boom Mic III (Open)