CATEYE OHR-31 OPTICAL HEART RATE SENSOR Giant-kids 30/46 XS:170mm

30/46 XS:170mm

long and fast: this chain can go the distance

This full-carbon

The wire groove on the side of the storage box allows you to extend charging cables conveniently

CATEYE OHR-31 OPTICAL HEART RATE SENSOR Giant-kids 30/46 XS:170mmIntroducing the OHR 31 Optical Heart Rate Sensor, the perfect balance of performance and convenience. This compact wrist watch style device offers dual band Bluetooth 5. 0 ANT+ capability for easy connection to cycling computers and smartphone apps, plus USB rechargeable battery with up to 24 hour run time. IPX7 rated to withstand the elements, the OHR 31 also features an LED low battery indicator and auto shutdown mode for maximized battery life.