OTOZABU Open Wireless Bluetooth Earbuds 6.0- Clip on Earbuds with Heart Rate Monitoring Function

["Ergonomic ear clip design: Our ear clip design fits snugly against the auricle, eliminating the need to enter the ear canal for comfortable wear.","Advanced Bluetooth 6.0 technology: This Bluetooth earphone adopts the latest Bluetooth 6.0 technology, with better performance, more stable transmission, and lower power consumption.","Practical heart rate monitoring function: This earphone has a built-in optical sensor that can continuously monitor your heart rate during exercise, work, or daily activities. Please note that this function is only for entry-level users and all monitoring data is for reference only. It cannot be used for medical purposes and is only for daily life reference.","Important reminder; Suitable for first-time headphone buyers and casual users, to use the Heart to Heart Monitoring Sea function, you must use the 2ay9Lie \"application on your phone (scan the QR code pin in Shangming Book to download). If you encounter any problems while using the application, please contact us promptly)."]