If you wanna more strong and clear tactile feedback, we can embedded metal domes into the membrane switches. At present, the metal-dome-button has already been used in a great deal of machine, because it has very steady force and clear click. Its life-span can reach 1 million times at most，and the strong environmental adaptive capacity enables metal domes to work in -40℃～+80℃.

Characteristic

1.Have strong and clear tactile feedback
2. Have strong environmental adaptive capacity
3. The effective area is largemoderate