BEEEEP, beeeep, beeeep! No, that's not the ranger's pacemaker you hear. The sound coming from the rough is actually your sliced tee shot, which you located in seconds thanks to the RF IDeas RadarGolf ball-finding system. Invented by a software wiz who grew tired of losing balls, the handheldRFID reader scans the course for a microchip (the size of a grain of rice) fitted into a low-compression, two-piece ball (a dozen included). The beeping intensifies the closer you get to your AWOL orb until, eureka! Lost and found. It's USGA-approved for friendly rounds, though not in competition. "The balls fly pretty far, and I found all my bad shots," says our smitten tester. "Well, not all of them. It doesn't work well under water." Radar Golf Starter Kit Radar Golf Ball (1 Dozen)