G-CORE : Portable GPS Golf Range Finder
How can I input the information of a golf course?
Do I need to equip special device at golf course or at golf ball in order to use G-core product?
How much is the distance error?
How long does it take to find satellite after turning on the product?
How long is the battery life?
What kind of battery is used?
Is it possible to change distance unit to which I want?
Is it possible to set left/right Green at my convenience?
How can I download golf course data?
How many golf course data is able to store on the product?
What's the specification of G-core?