XIRO Xplorer Aerial UAV Drone Quadcopter -- Standard Version Ready to fly quadcopter: Charge the included battery, attach the propellers & start the remote controller Upgradable to Xplorer V or Xplorer G version Auto shut-down after landing to prevent accident Return Home function will activated automatically when connection is lost or in low battery for extra safety Built-in 5,200-mAh lithium polymer (LiPo) rechargeable battery can fly up to 25 minutes on a single charge