This LED Light Kit is perfect for those wanting to use any of the CaldwellA(R) Ballistic Precision Chronographs indoors or in low-light conditions. The kit includes everything needed to replace the original sun screens with new screens that have 32 bright LEDs built in. Easyto- use lighted screens include a power cord that plugs directly into the side of the Ballistic Precision 2.0 Bluetooth Chronograph to power the lights. For the original Ballistic Precision Chronograph, a battery pack is included to power the lights. Upgrade your chronograph with the Ballistic Precision LED Light Kit. Mfg: Caldwell Shooting Supplies