Great product much better then I expected. This Sonocaddie V 100 is more then they tell you about,I had a GarminGolflogix gps and spent a fortune for battery's. This gps has a built in battery that is rechargeable, I get about 4-5 rounds on one charge. The better part is this unit is about half the price as the other golf gps units that on the market. If your are in the market for a Golf GPS check this Sonocaddie V 100 out. DougSonocaddie V100 Pocket Golf GPS
