1. This product has been awarded the patent of practicality and updated technology, patent No. is 200830040917.X
2. High density multi core bronze thread,effectively reduce the loss,single side incoming thread desiging,avoids rolling.
3. φ40mm phonation element for wide tessitura and bass beat.Using original packed materials imported from Japan.
4.Rotary microphone can be fixed easily，soft artificial leather clarino material outside to make comfortable wearing.