Features 1. Super comfortable and soft strap: Made of a blend of nylon and spandex, our strap is designed for extended comfort during long-term wear. 2. Reliable performance: Suitable for walking, light jogging, or long-distance activities. Monitor your heart rate and view heart rate history on your smartphone, app, or compatible watch. For regular training, consider using an additional chest strap. 3. Comfortable design: Thoughtfully crafted with high-quality materials and attention to detail to deliver a comfortable fit and reliable performance. 4. Advanced technology: Compatible with various fitness apps and devices. Unisex universal size, stretchable up to 100 cm. Easy to adjust and wear. 5. Waterproof and durable: Features a quick-connect electrode protected by a soft, waterproof, and sweat-resistant rubber coating. Fully washable (not suitable for swimming). Specifications Material: Nylon Color: Black, Red, Pink, Gray, Blue, Yellow, Orange, Dark Blue Size: 1 m Weight: 40 g Package Includes: 1 x Chest Strap