Night Eagle Light Up Golf Balls (6 Pack)Turns on with your smartphone!The Night Eagle is the best LED night golf ball on the market because it turns on with your smart phone flashlight and stays on for up to 2 hours with a total battery life of 40 hours. No longer will you loose your ball because the impact switch turned it off or you didn't get to your ball in time.商品番号:GLB0132 商品名:Night Eagle Light Up Golf Balls (6 Pack)