The Philips HeartStart Home Defibrillator is an easy-to-use, lightweight, and portable device that treats sudden cardiac arrest (SCA). Specifically designed for home use, this electronic Philips Heartstart AED Defibrillator is safe to use as it helps in treating only the shockable heart rhythm. The automated external defibrillator can easily sense and respond to user"s actions to give detailed instructions on how to administer CPR. This electronic Philips Heartstart Home Defibrillator features a battery with a life span of 4 years. If this portable Philips Heartstart AED Defibrillator detects a problem, it alerts the user by sounding an alarm. The defibrillator comes with a red carry case with 911/EMS card, an adult SMART Pads cartridge, and a training video. Philips HeartStart Home Defibrillator - AED: * Safe Based on industry-leading technology * Only treats shockable heart rhythms * Easy to Use Guides you with interactive voice instructions * Senses and adapts to your actions * Provides CPR coaching * Reliable Comes with 4-year battery * Runs daily self-tests for readiness, virtually no maintenance needed * If HeartStart detects a problem, it chirps loudly to alert owner. * Portable Weighs just 3.3 lbs