The Zoll AED Plus is the world's only AED with a built in device to measure chest compressions and give you the feedback you need during CPR! The Zoll AED Plus is designed with the layperson in mind..completely voice prompted, LCD screen, shock count and more! The Pluses don't stop there.....5 year lifespan on the pads and batteries plus a 5 year warranty on the device itself! Watch our First Responder Video and see what makes this the most user-friendly AED on the market Prices may vary if training is required. Ask us about our American Heart CPR classes!