Also called button switch, first appeared in Japan [known as: sensitive switch] when used to meet the conditions of operating force to switch operation direction pressure switch function closed on, when the pressure is withdrawn when the switch is disconnected, its internal structure is to rely on the metal shrapnel force changes to achieve on and off.

The touch switch consists of: insert, base, shrapnel, button and cover plate. The waterproof touch switch adds a layer of polyimide film on the shrapnel.

Light touch switch have small, precise operation contact resistance force error, specifications and diverse, etc advantages, in the electronic equipment and white goods and other widely used such as: audio products, digital products, remote control, communication products, home appliances, security products, toys, computer products, fitness equipment, medical equipment, yanchao pen, laser pen button and so on.