1、Compatibility: The heart rate monitor can connect to various fitness equipment, such as treadmills with 3K transmit frequency, providing versatility and flexibility in monitoring heart rate across different workout settings. 2、Hardware: With the hardware and algorithm designs, the heart rate monitor reduces noise disturbances caused by movement and sweating, allowing for more accurate tracking of heart rate during exercise. 3、Secure Correction: The heart rate monitor has a chest strap design that provides secure connections and a tight fit, preventing the monitor from slipping or moving during exercise to maximize accuracy. 4、Multi Functional: The heart rate monitor records all physiological and exercise data throughout your workout, whether indoor or outdoor, guaranteeing accurate and comprehensive results. 5、Accurate: The heart rate monitor delivers accurate measurements and insights on how your body responds to physical activity, which helps you adjust your training strength and frequency. 1 x Heart Rate Belt1 x Manual Item Type: Heart Rate MonitorMaterial: ABSBattery: 1 x Button Battery (not included)Battery Type: CR3032