The AirLeash long range bluetooth signal range is ~250 meters (approx. 820 feet) when AirDog is in air and there are no obstructions in between.
However, we have limited the maximum follow distance between AirDog and AirLeash to 90 meters (approx. 290 feet) horizontally and 70 meters vertically (approx. 230 feet) due to safety reasons.
If AirLeash looses the connection to AirDog, it will stop following and wait until signal is regained. Please see the article - "What Happens if AirLeash loses connection to AirDog" if you want to find out more.