HERE ARE SOME OF THE FEATURES: - WORKS ON THREE LR44(AG3) 1.5 VOLT BATTERIES (ALL BATTERIES ARE INCLUDED!) - EACH METAL CONSTRUCTED LASER POINTER COMES WITH IT'S OWN KEYCHAIN HOLDER - WAVELENGTH IS 650NM RANGE......2500+ FEET!!!!! - LASER IS 3" LONG....WITH NEAT 'BULLET' SHAPE
