3 x 4 Matrix Keyboard - Membrame - Adhesive '1' - pin 1 + 5 '2' - pin 1 + 6 '3' - pin 1 + 7 '4' - pin 2 + 5 '5' - pin 2 + 6 '6' - pin 2 + 7 '7' - pin 3 + 5 '8' - pin 3 + 6 '9' - pin 3 + 7 '*' - pin 4 + 5 '0' - pin 4 + 6 '#' - pin 4 + 7 This product has been tested