I know I have make a bad purchase when the shipping charge be higher than advertize . I have use the system - lightly - for about three week and already one of the speeker have go out . I should have shop around . Wal-Mart have a similar system at a significantly lower price -lrb- particularly after pay $ 35 + for shipping -rrb- . I wish I have shop around more before buy this dog ! : -lrb-