Experience unparalleled accuracy and comfort with the COROS Heart Rate Monitor, co-created with Jakob Ingebrigtsen. Designed for serious athletes, this arm-based monitor provides real-time heart rate tracking without the discomfort or distractions of chest straps. Its advanced multi-channel optical sensor ensures precise data across all training intensities, while Bluetooth connectivity allows pairing with up to three devices simultaneously. The soft, adjustable band offers a secure and non-restrictive fit, with wear detection for automatic pairing and a removable sensor for easy cleaning. Enjoy extended training sessions with up to 38 hours of use on a single charge, and quick recharges via the magnetic USB cable. This heart rate monitor is perfect for runners, cyclists, and anyone prioritizing focused, data-driven training. Key Features: - Accurate real-time heart rate monitoring - Comfortable arm-based design - Bluetooth connectivity for up to 3 devices - Long battery life (38 hours continuous use) - Easy charging and cleaning COROS Heart Rate Monitor, Jakob Ingebrigtsen edition, HRM3, black, accurate heart rate tracking, arm strap, comfortable, Bluetooth, long battery life, training accessory.