This handheld device provides real-time coaching on the essential parameters of quality CPR, helping cardiac-arrest first responders optimize CPR performance. Users receive real-time feedback on compression rate, compression depth, release, and hands-on time. Summative Quick Review event statistics enable teams to evaluate their CPR performance, leading to valuable insights. CPRmeter 2 is improved with a new design, a larger and brighter display screen, longer use through AAA battery, and Bluetooth technology.