Offering Morse code "H-I-T" blinks for a clear indication of a hit on target, the Hornady HIT™ Impact Indicator is a must-have for long-range shooters. Utilizing an onboard accelerometer to detect bullet vibrations, the ultra-bright LED light is visible out to 1,000 yards (in ideal weather conditions), and the integrated elastic band offers quick installation on most target stands. The internal battery is rechargeable using the included micro-USB cable. Weather-resistant design.