No more guesswork in the kitchen: Cook soft, medium and hard boiled eggs to perfection, every time. Our catchy tunes will make your time in the kitchen more enjoyable and play loud enough to hear over the TV and other distractions. The beep egg timer functions at all altitudes and under all conditions. It works by measuring the core temperature of the egg to determine the exact stage of cooking. With the beepegg egg timer, say goodbye to over-cooked eggs and guessing the correct cooking time. Just add your eggs to the pot and wait for the beepegg to sing your favorite tunes.