With the rapid development of society and the advancement of technology, which are often associated with the electromagnetic radiation damage caused by high-tech products, and it’s more serious for fetus. Care Bracelet, a radiation warning gadget designed by Gang Wang, Bin Xiao and Yanyan Cheng, is for those pregnancy women and can be used to alert radiation, which has a radiation detection device equipped inside. When wearer in the safe area, the color is green, however, when the level of radiation exceeds the standard, the color of probe will change to pink; meanwhile the bracelet will begin to vibrate as well in order to advise pregnant women away from the radiation source.