CPR BAND for Training is a small, lightweight educational device that uses rechargeable batteries and is worn on the wrist. This device is designed for trainer and trainee educated in using CPR and the CPR BAND for Training. CPR BAND for Training provides real-time information about chest compression according to the latest CPR guideline. This device displays CPR feedback indicator for the chest compression depth. It guides chest compression rhythm through sound and indicates the total chest co