It is a shield with 9 capacitive touch buttons that you can use in keypad applications with Arduino.
It features the MPR121QR2 capacitive touch sensing IC. In addition to the 9 buttons, you can solder connections to the pads labeled ELE11, ELE10, and ELE9 on the board to use 3 additional capacitive touch inputs. Thanks to the onboard logic level converter, it can be used seamlessly with both 3.3V and 5V Arduino boards.
NOTE: The board comes with pre-soldered long headers that allow stacking multiple shields.
Package contents: Touch shield with long header connectors, 2 x 10 mm female-female spacers, 2 mounting screws