We have the equipment our nephew gift and you have been assimilated to the test when skiing with complete success! Since Mama's so little thoughtful depart the runway, the children had to be so always found the way back. The range was great on the slopes around 6 km distance. Operation real easy by color channels are determined and our kids had understood the system in 2 minutes. Maybe something simple because the Gehäuser are for adults komplet made of plastic and a bit cheap but therefore come from the function properly.