Like u/Hinermad said, these are iambic paddles and will need a keyer to work. There are two "paddles" - one makes dots and the other makes dashes via an electronic device called a "keyer" which is external to the paddles. If you want to send dots and dashes directly like in the wild west, you'll want something more like this: https://www.amazon.com/Heavy-Duty-Morse-Straight-Key/dp/B0BKL6GFMX which will hook directly to an oscillator.