I was just at wisycoms the other day. I had a demo audio limited A10 and was comparing it to a wisycoms. Both units were laying on a bench next to each other. Did a walk test with both got about 600 feet on both before dropping out. Inside a building on metal and concrete and the units were inside walking outside. Distance on the A10 did not seemed to be a problem. Both wisycoms guys and I had a real hard time telling the difference between the two. They sound very much the same.