1.RoHS Standard 2.Electronic used membrane switch 3.Used for fridge, air conditioning, car, etc. 4.3M ... attached. 5.Customized Membrane Keypad, Membrane Switch, Overlay, Graphic Mylar, Mylar, Mylar keyboardWith metal dome and LED ... Using ambient temperature -40 ~ +55 Recycle life > 1,000,000 times Membrane Switch