The Garmin Edge 830 GPS Computer is a performance GPS cycling computer with full colour mapping and simple button operation. Dynamic performance monitoring provides insights on your VO2 max, recovery, training load focus, heat and altitude acclimation, nutrition, hydration and more. Cycling safety features include new bike alarm, group messaging and tracking, incident detection and compatibility with Varia rearview radar and lights so you can see and be seen. Includes routable Garmin Cycle Map with popularity routing which helps you ride like a local, plus on-device route creation, off-course recalculation and back to start. In the box: Device only - Edge 530, Standard mount, Flush out-front mount, Tether, USB cable, Documentation. Garmin Edge 830 GPS Computer Features The mountain biking model has integrated Trailforks data, including trail difficulty ratings Customise with free apps, widgets and data fields from the Connect IQ Store MTB dynamics track jump count, jump distance and hang time as well as Grit, a measure of how difficult a ride is Flow tracks the smoothness of your descent so you have a score to beat next time Battery life: up to 20 hours with GPS and this is extendable up to 40 hours with the optional Garmin Charge power pack or in battery save mode