COROS Heart Rate Monitor Jakob Ingebrigtsen Edition sandals which allows the light sensor

which allows the light sensor to automatically adjust brightness and beam pattern

Large arm opening to reduce chafing when running

breathable mesh upper

especially for long hours on your feet

made from sugar beet

COROS Heart Rate Monitor Jakob Ingebrigtsen Edition sandals which allows the light sensorHRM JAK Comfortable and simpler to wear than a chest strap. Easy to adjust the fit and remove the sensor for quick cleaning. Our latest multi channel optical sensor for precise measurement. Up to 3 simultaneous connections with Bluetooth enabled devices. Wear detection allows for automatic device pairing for new workouts. 38 hours of full operation or 80 days in standby mode on a single charge. Rechargeable with a magnetic USB charging cable.