This was bought to monitor my 4 year olds sleep Apnea however, she wouldnt tolerate it going to bed so only worn for 10 minutes.The Wellue Pediatric Pulse Oximeter KidsO2 is a wearable health monitor designed for children to track their oxygen levels. This Bluetooth-enabled device is compact and easy to use, with a rechargeable battery for convenience. The LCD display shows accurate readings, and it is compatible with smartphones for added functionality. With a manufacturer warranty of 1 year, parents can trust in the reliability and quality of this product. Ideal for monitoring children's health, the Wellue Pediatric Pulse Oximeter KidsO2 provides peace of mind for parents and guardians.