Songhe 4 x 4 Matrix Array 16 Key Membrane Switch Keypad Keyboard for Arduino 4X4 Matrix Keyboard 5pcs

Rebound time 1 (ms).
Life of 100 million (times).
Operating Temperature: 60 ℃.
Key Operating Force: 150-200N.
Circuit Rating: 35V (DC), 100mA, 1W.