- The unique patented one-piece diaphragm and rims rapid conversion design is convenient for regular cleaning, maintenance and quick replacement of the chestpiece.

- The special printed y-tube uses the newest coloring technology.

- The pressure sensitive diaphragm is adopted, and there is no need to switch, and the high and low frequency sounds can be listened to by light pressing, which is very convenient.

- The binaural assembly combination with the sound collecting yoke in the Y-tube, can transmit clear sound quality accurately. Soft ear beans with soft material greatly reduce the discomfort caused by long-term use.