... 2)good in sealing for water-proof and dust-resistance Switch with Metal Dome 1)long using life 2)good in sealing ... type 6 printed circuit board type 7 light emitting membrane switch 8 Gradually discolored pattern membrane switchFeatures:1) Light weight,compact ... , BLACK&DECKER, SAMSUNG,Panasonic ,Philips,whirlpool, hesenseand so on. membrane switch with metal dome