It's crazy that these still exist. It only lasts 1 year? With how briefly they are often used and how tiny the power output must be, I suspect an electronic v

It's crazy that these still exist. It only lasts 1 year? With how briefly they are often used and how tiny the power output must be, I suspect an electronic version could last a lot longer on a single battery. There's a modern version that is literally a piezo crystal powered by pulling a gun trigger. That's probably not much energy.