Whether you're handloading for the range or building arrows for the hunt, the Xero C1 Pro chronograph provides the speed data you need to hone your craft. At the size of a deck of cards the chronograph will reliably pick up your shots at velocities from 100 to 5,000 feet per second. The button-operated design is simple to use with the backlit display for indoor and outdoor usage. Compatible with the ShotView app to keep track of your shots. Rechargeable battery that will give you up to 2000 shots or up to 6 hours of use.