Forever Love / fever ring

When parents find some information about fever of baby,he/she can use the ring to touch baby’s forehead,as the ring get red,it shows us the baby has a fever while the ring change nothing,the baby is right.
There is a temperature-sensitive material of the outer surface of the ring,when feeling the high temperature,it gets red.
We use a more warmer traditional way to detect whether baby has a fever or not,to deliver a message of LOVE between parents and baby.