These razors are great!
I have been shaving for over 45 years. I’ve used Norelco, Remingon, Braun, Emerson, and Panasonic electric razors and blade razors, with one to four blades, from Bic, Gillette, and Schick. These Old Spice Navigator razors are by far the most comfortable razors I’ve ever used and they give the best shave. They consist of a handle, with a battery inside, and three razor heads that twist onto the handle. Once the razor head is in place, you turn on the razor by twisting the base of the handle. The blade begins to vibrate at a high rate of speed. The package says the razor heads and handle will last for a month of shaves. I put on a new head after 10 shaves but the blades are still sharp when I replace them.