The chest piece on this unit is made with anodised aluminum and uses a single or dual head design. It also comes in one of five different colours. The screw ring is also made with the same aluminum body. The acoustic diaphragm is made with a polyvinyl material. The binaural adjustment is easy to use and the spring is outside the tube. The PVC tube is also convenient for use.
- Material: : aluminium
- Type: : dual-head