Adult CPR Manikin with LED Light CPR Feedback shows the blood flow to the brain when giving CPR correctly. LED lights underneath the skin light up from the manikin chest, through the carotid arteries, and into the brain when CPR compression depth, compression rate, and recoil are done correctly. This instant visual feedback gives students immediate corrective feedback to their CPR compressions, improving their skills quickly and resulting in more effective life-saving CPR. LED light progression from the chest to the brain also reinforces the critical learning objective of the importance of CPR. Students get it; the teacher is happy. Instructors know the importance of proper CPR. But it's nearly impossible to evaluate and correct the CPR skills of an entire class of students; simultaneously.