1.Clock function,patented design
2.Silver dual-membrane chestpiece: the membrane with diameter 45.5mm is sensitive for sound collecting.
3.Zinc alloy chestpiece,excellent sound conduction.Little acoustic attenuation.
4.High quality rolled steel connecting spring,tightness is reasonable.
5.Accessories bag is included
6.Transparent PVC bag packaging or gift box packaging.
2.Silver dual-membrane chestpiece: the membrane with diameter 45.5mm is sensitive for sound collecting.
3.Zinc alloy chestpiece,excellent sound conduction.Little acoustic attenuation.
4.High quality rolled steel connecting spring,tightness is reasonable.
5.Accessories bag is included
6.Transparent PVC bag packaging or gift box packaging.