The Oracle 2’s design is based on all the customer feedback we got from the original Oracle and includes: Improved Auto-Brightness Detection, Improved Manual Brightness Control (lower levels), Improved Set-Up (micro-adjustments on LRF), better waterproofing and more accurate arrow drop calculations. The function is still the same... range your target at full draw with the push of a button. The Oracle 2 instantly provides the distance to your target and an exact aiming point that factors in the angle of your shot. Auto-Brightness Detection Manual Brightness Control Waterproof Factors Angle of Shot Burris Forever Warranty Length: 0.00000000000000000000 Width: 0.00000000000000000000 Height: 0.00000000000000000000 Colour: Black