???? ???????? ?????? ?????? ?? ????? ???? ??????? ????? ???. ??? ?????? ?? ????????? ??????? ???? ?? ??????? ??? ?? ???? ???? ?? ???? ????? ???. ????? ???? ??????? ?? ??????features ??? ?? : ???? ????? ????? ?????? ? ???? ???????} ?? ???????? ^???????? ?? ???. GPS Tracker for Explorers | ??????? ?? ????} ???????? ?????? detecting ??? ???? ????