mentech Bluetooth Heart Rate Monitor, Comfort, Easy to wear, Auto-wear Detection, Advanced Sensor, Precise Data, 140 Hours Battery Life, Waterproof, Standard, BalckWhite

["【Comfortable & Lightweight Wear】 Only 19g with a breathable, elastic strap and durable zinc alloy frame — designed for a secure yet comfortable fit on your upper or lower arm. Ideal for extended workouts without discomfort.","【Real-Time & Accurate Heart Rate Tracking】 Equipped with a high-precision sensor and dynamic algorithm, this armband delivers reliable real-time heart rate monitoring. Supports custom vibration alerts for staying within your target training zones.","【Extended Battery Life & Fast Charging】 Enjoy up to 140+ hours of use on a single charge. The built-in rechargeable battery fully charges in just 1 hour using magnetic charging, perfect for daily training or long-distance rides.","【Local Data Storage & Dual-Mode Connectivity】 With built-in memory storing up to 1,000 hours of heart rate data, you can train freely without worrying about data loss. Supports both Bluetooth and ANT+ for seamless pairing with compatible sports apps, GPS computers, and fitness devices.","【Multi-Sport Modes & App Integration】 Whether you're cycling, running, or training indoors, multiple sport modes offer flexible support. Pair with the Mentech Sports App to unlock additional features like sleep tracking, heart rate alerts, firmware updates, and more."]