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This finger-pressing ring is designed for the elderly to enable them to operate the smart screen flexibly with their fingers.Because their finger nerve becomes dull,they often need to press the button hard to feel it when they use smart product.This product applies the touch-control pen concept in it,and is designed as a ring.They can wear on the hand in normal times as an ornament.When they use it,they can take it down,and wear it at their fingertips with the ring flower down.The center point of the flower is a pressure contact point,which can convert the signal into vibration and convey it to the use by the principle of pressure sensor.