pinty red laser red dot sight waterproof military grade low profile compact with rail mount and accessory pinty <b>laser class:class iiia</b><br><br><b>specifications:</b><br>power: <5mw <br>voltage: dc 4.5v<br>batteries: lr41<br>wavelength: 650nm <br>effective distance: 300 meter at night <br>item weight: 1.1 ounces<br>size: 1.1" x 1", mini style<br><br><b>package includes:</b><br>1x red dot laser sight <br>1x wrench key <br>3x lr41 batteries