Sanupri Green Laser Pointer Pen for Presentation with Adjustable Cap to Change (50 nm, Green)

1 Just Remove Disco Light Effect Cap From Pen To Get Straight Pointer Light For Presentation ?Powered by 2 x AAA batteries ,If batteries are not working properly then use another one for better laser light pointer ?The Laser Pointer Can Be Transformed Into A "Disco Laser Pointer" With Its Star Cap ?100 to 300 ft. during the day and up to 1000 ft. at night. Up to 50 times more powerful than most other laser pointers.