WAVE is addressing the only leading cause of accidental death that has not been declining over the past 20 years, drowning. Virtually no technology has been applied to drowning detection or prevention, and consistently almost 1,000 US kids and 3,000 US adults die each year. WAVE is a wireless swimmer tracking system that is the first solution with the affordability, simplicity and reliability to enable widespread adoption. Our vision is that swimming without a system like WAVE will be as rare as driving without a seatbelt or cycling without a helmet.