RSP manufactures rubber keypads, also known as silicone keypads, which are ideal for various products. One of the great things about silicone keypads is the ability to coat the piece for increased durability, in addition to being more chemical and environmental resistance.
While it's not evident what this product is, the average person comes in contact with silicone keypads, also known as elastomeric keypads, almost daily. Because of their low cost, flexibility of design and reliability, silicone keypads are used in a variety of industries, including medical, marine, and military, in addition to consumer applications, such as TV remotes and electronic games.
To learn more about rubber keypads/silicone keypads, visit:
https://www.rspinc.com/capabilities/silicone-keypad/