The POLAR H10+ CRUSH heart rate strap TF (size M-XXL) from Polar is a high-precision heart rate sensor, ideal for reliably monitoring physical activity. Equipped with Bluetooth and ANT+ connectivity, it ensures una stable transmission and compatibility with numerous devices. The ergonomic and adjustable design ensures comfort during training, while the advanced technology provides accurate data in tempo real-time. Perfect for athletes and enthusiasts looking to optimize performance and monitor heart rate with maximum efficiency.