The Lifeline AED is designed for speed and simplicity. It has been built to the demanding standards of professional emergency personnel, but simple enough for non-medical users. At just 4.2 pounds a child could carry it. Plus, the Lifeline AED is tested to US Military "drop and shock" specifications. The "Power On" and "Shock" buttons are oversized and brightly lit so even the most nervous fingers will hit their mark. The electrode pads are tucked into a back pocket ready to apply. This defibrillator is one of the best, and we have it here at Muskoka fitness.