Comes with built-in rechargeable battery. Can be charged using USB-C cable.
Can measure streamlines darts, stefan darts, MEGA darts, rival balls and WBB gel balls.
Chronograph can be set to either metric or imperial.
Exact projectile diameter and weight can be set to give accurate readings.
Chronograph can also view history of the all the readings.
Included in the box:
Chronograph
Tripod
USB-C Cable