❤This type of color change mood jewelry can perceive your temperature and test your mood.It is sensitive to temperature, so when your mood change,your body temperature may change with your mood.Different color represents different mood. ❤A meaningful way to show each others love. ❤Great gift choice for special occasions such as a Christmas, Valentines Day,Birthday, Anniversary, Wedding,Easter and Mother's Day ❤Suits those who love a simple and delicate style jewelry ❤Perfect for lovers,couple,girlfriend, wife, mom, best friend, etc.