Flowers Bluetooth brooches

My mother told me a story about a time I played a prank on her. I was 3 years old. She took me out shopping. While she was browsing some clothes, I disappeared. She was devastated. She looked for me everywhere and had the store broadcast my name. It might have been a couple of hours of searching in vain until she noticed a pair of tiny feet underneath a giant coat on a mannequin - I was hiding inside the coat the whole time, sweating and giggling. It was funny for me but a nightmare for my mom. There are always stories about kids go missing due to various reasons. Parents shouldn't be overprotective but in public areas they need to keep kids in sight. Tracking devices exist. But can we create some interactive behaviors that can be more effective? Kitty's Flower is a pair of Bluetooth wearable brooches. Jointly created by Art by Physicist and DFRobot, they are specially designed for wearable application scenarios, integrated power management system, RGB LED lights, accelerometer, senso