Thank goodness for this group! EMS, Fire Departments, Law Enforcement and other trained responders are often the difference between life and death in an emergency. These heroes are familiar with AEDs, CPR and First Aid. They are trained to diagnose and treat, while being calm and efficient in a stressful situation. AED.us’ First Responder Value Packages contain your choice of AED with accessories and can be customized according to your preferences, including a backpack.