Marco Polo works up to 2 miles (3.2 km) in line-of-sight situations. Expect approximately 1/2 mile to 1 mile (.8 to 1.6 km) in mildly rolling terrain with moderate vegetation. Your individual performance will depend on the specific conditions in the area of use, such as terrain, vegetation, and obstructions. If your drone is beyond Marco Polo’s initial range, you can expand the range by walking or driving around the areal until you come within range.