The portable and with richer applications laser pointer is a good guide for your traveling， and a good tool for pointing to the faraway target or stars and sending out the SOS signal . Also， it always widely used it to point at the faraway target or stars. This green laser pointer is also the best gift for friends and families. Good choice for you!                                    Features             Super laser pointer， wonderful gift to anyone from kids to adult<br> Use your laser pointer to point any targets， it’s convenient for your daily life<br> Power saving， lightweight， suitable for putting in your pocket or handbags<br> This high quality laser pointer adopts the latest technology optics and microelectronics<br> This laser pointer can be used for presentation， teaching indicator， children amusement and more<br>                                                            Specifications            Laser Color    Red    <br>Laser Wavelength    650nm    <br>Laser Output    5mW    <br>Laser Range    About 49 Feet    <br>Light Style    Beam Light    <br>Power Supply    2 x 1.5V AAA batteries (not included)    <br>Switch    Button    <br>Output Wave    Continuous Wave    <br>Body Material    Alunium    <br>Working Temperature    0℃- 40℃    <br>Storage Temperature    0℃- 40℃    <br>Product Weight    0.63 oz / 18 g    <br>Dimension    Approx 5.31 x 0.43" / 13.5 x 1.1 cm (L x Dia)    <br>Body Color    Blue    <br>                                                            Package Includes            1 x 5mW 650nm Open-back Ultra Powerful Red Laser Pointer Pen Blue <br>