★8 pins connector, pitch 2.54mm membrane switch keypad, Life span : average tactile time 1,000,000 ,Operation Temperature : 0-60°C | ★4x4 keypad is a great way to let users interact with your project. You can use them to navigate menus, enter passwords, and control games and robots. | ★The 4x4 matrix keypad usually is used as input in a project. It has 16 keys totally, which means the same input values. It's ultra-thin, easy to interface with any microcontroller and has an adhesive backing for easy mounting. | ★Application: Password security system,Wired remote controlled robot, Electronic voting machine, Generating external interrupt,Musical keypad and many more. | ★Keypad dimensions: 77*77mm, Length of cable: 84mm. Weight: 6.5g, 8-pin 0.1" pitch connector.