1.Key frame uses zinc alloy material.
2.Buttons are made of high quality zinc alloy, with a strong anti-destruction capability.
3.With natural conductive silicone rubber -weather resistance, corrosion resistance, anti-aging.
4.Double side PCB with golden finger, resistance to oxidation.
5.Button color: bright chrome or matte chrome plating.
6.Key frame color according to customer requirements.
7.With alternative interface.