Our child was in the NICU so wanted something thay could track breathing and heart rate for peace of mind. the baby on this is AMAZING. super clear and leave audio in the background from your phone like a walkie talkie. The actual sense pad and base works. The sense u sensor has to be placed on skin instead outside of the diaper. The sensor and base are connect to bluetooth. so to see vitals, you have to keep the teo devices within the same room but can view anywhere from the app, as long as the base and sensor is within 50 or so feet. Otherwise, this works pretty well. The sleep position is pretty spot on.