Sudden cardiac arrest (SCA) can happen to anyone, anywhere. Immediate treatment is vital - a victim's chance of survival dramatically decreases for every minute without treatment. LIFEPAK CR2 Semi-Automatic English AED provides a reliable solution, so when an emergency happens, you have nothing less than the best. Layered design features bold, easy-to-follow graphics so that both trained and untrained AED users clearly know how to begin. QUIK-STEP electrodes peel directly off the base for fast-and-easy placement. Metronome and CPR coaching sets an effective pace and audibly guides users, while ClearVoice technology detects background noise and adjusts the volume accordingly for guaranteed clear instruction. Highest available escalating energy provides more effective shocks as needed, while the Child Mode delivers lower energy levels appropriate for young children - without having to change electrodes. Defibrillator features USB data transfer with internal ECG storage. Semi-automatic model comes with a convenient carrying handle and boasts a LIFEPAK TOUGH IP55 rating for challenging environments.