- button: on/off button
- battery: 1*CR123A
product name:adjustable focus green laser pointer with on/off button.
battery :1x"cr123a" .
laser type:visible laser diode
visible green dot and green beam at night and in lighted area.
technical parameter: adjustable focus, green dot facula, continuous output and working time over 5000 hours
blue high-brightness led work instructions
appearance and color: black