Burris Refurbished Products Burris refurbished products have been returned to Burris by a customer, and may exhibit minor cosmetic blemishes from usage that will vary from refurbished product to product. Refurbished products and their included accessories have been restored to a guaranteed operational standard for a new product by Burris. All Burris refurbished products are covered by the Burris Forever Warranty (View Warranty). The Oracle laser rangefinding bow instantly calculates and shows the exact aiming point for any distance and shot angle. The Oracle will learn the trajectory or drop for two different arrow configurations and will accommodate up to 176 inches of drop at 100 yards. Most bow set-ups will be able to achieve 80-110 yards depending on bow speed and arrow weight. The Oracle bow sight automatically detects when the sight is mounted for a left-handed bow and reverses the LED readout. One CR123 battery powers the sight for 1,000-2,000 cycles. Features: Battery - CR123 Battery Life - 1,000 to 2,000 activations Laser to Reflective Target - 500 yards Laser to Deer - 200 yards Operating Temperature - -10F to 140F Storage Temperature - -40F to 158F