Description: Material: PP Size:9*6cm/3.54in*2.36in Feature: 1. R-CAT EKG Badge uses advanced biosensor technology to accurately monitor heart rate changes, suitable for sports enthusiasts and health management personnel. 2. Lightweight design, comfortable and burden-free wearing, excellent waterproof performance, accompany your life and sports needs all day long. 3. Support real-time data transmission, compatible with mainstream smartphone systems, so you can keep track of your heart health at any time. 4. Fashionable appearance design, a variety of colors available, not only a health assistant, but also a perfect choice for personalized accessories. 5. Up to 10 days of ultra-long battery life, reducing the trouble of frequent charging, making health monitoring more convenient and efficient. Note: 1.Due to manual measurement, there may be a 1-3mm error in product dimensions. 2.The color of the product may have errors due to objective reasons, and the actual product is the main focus. Package includes: ECG Badge Ruler*1pcs/2pcs