Designed for everyday people in life-or-death moments, the Philips HeartStart HS1 defibrillator provides clear, step-by-step voice instructions and CPR coaching to help you respond confidently to sudden cardiac arrest. It’s ready to use straight out of the box, performs daily self-checks, and delivers one of the fastest shocks in its class. Whether you’re safeguarding a workplace, school, or community space, the HS1 brings trusted, personalized emergency care to anyone, anywhere.