ITEM NAME:12Key Membrane Switch Keypad 3 x 4 Matrix Keyboard Module Membrane Switch Key OZ Description: This high quality 4x3 Keypad Matrix lets you quickly add controls to your electronics projects. It offers 0-9 numerals, standard star(*) and hash(#) symbols. Features: 100% brand new and high quality. 12 Button Matrix 0-9 # * Excellent price-performance ratio Easy communication with any microcontroller Package includes:1Pc 12Key Membrane Switch Keypad 3 x 4 Matrix Keyboard Module Membrane Switch Keypad.12 Button Matrix. Excellent price-performance ratio.