Using simple radio frequency signals, RadarGolf takes (most of) the frustration out of golfing. A handheld finder tracks a proprietary microchip embedded in a ball that otherwise is equal to regular golf balls in every way. Within a range of 30-100 feet, the LCD screen's visual feedback and an audio tone gets stronger as it's closer to the ball. Included protective pouches shield balls that aren't in use from being detected. Check out another product shot after the jump and pick it up for $250 from RadarGolf or Amazon.