<b>Output Power: </b> <5 mW </br> <b>Laser Class: </b> IIIA</br> <b>Laser Wavelength: </b>632 to 650 nm</br> <b>Battery Type: </b> AG3/LR41 </br> <b>Range for Sighting: </b> 15 to 100 yds </br> <b>Dot Size: </b>2 in @100yd </br> <b>Operation: </b> on/off end cap </br> <b>Operating Temp: </b>F/C 14 to 122 / -10 to 50 F/C </br> </br> ✔PACKAGE INCLUDED: One bore sight fits and 10 of batteries. It requires 3 batteries to run </br> ✔SUPER LONG BATTERY LIFE: Upgraded battery, it can let your bore sight work continuously for more than two hours </br> ✔ACCURATE CALIBRATION & SAVINGS: Bore sight have accuracy compact and lightweight size, highly to reduce cartridges and shells wasted</br> ✔LASER CLASS: Class IIIA laser,5mW or less; Easy to use, reduce cartridges and shells wasted</br> ✔ LIFETIME WARRANTY: If you have any problem, please feel free to contact us</br>