Specification:<br /><br /> <br />  <br />   <br />    Product name: <br />   <br />    Adjustable Focus 532nm Laser Pointer<br />  <br />  <br />   <br />    Body material:<br />   <br />    Aerometal<br />  <br />  <br />   <br />    Switch:<br />   <br />    body click switch<br />  <br />  <br />   <br />    Focus mode:<br />   <br />    Adjustable Focus<br />  <br />  <br />   <br />    Battery power:<br />   <br />    1 x 18650\/2 x 16340 Battery (not included)<br />  <br />  <br />   <br />    Working time:<br />   <br />    &amp;gt;1hours<br />  <br />  <br />   <br />    Laser range:<br />   <br />    1000-8000meters<br />  <br />  <br />   <br />    Wave length:<br />   <br />    532nm<br />  <br />  <br />   <br />    Output power:<br />   <br />    1mw・5mw<br />  <br />  <br />   <br />    Working voltage:<br />   <br />    DC3.7V<br />  <br />  <br />   <br />    Working temperature:<br />   <br />    15 degrees C to 35 degrees C<br />  <br />  <br />   <br />    Laser Color:<br />   <br />    green color<br />  <br />  <br />   <br />    Size:<br />   <br />    16.5 x 2 x 2cm(length x body x head diameter)<br />  <br /> <br /><br /><br />Features:<br />1.Lightweight and handy・ suitable for put in your pocket or handbags<br />2.Adjust the focus to enlarge the spot size.<br />3.Serves a distinct signal to indicate the way out.<br />4.A helpful tool in astronomic study. If you are a big fan of astronomy・ you gotta have one of these!<br /><br /> Cautions:<br /> Avoid direct eye exposure to laser beam.<br />Package included:<br />1 x Adjustable Focus 532nm Laser Pointer<br />1 x keys<br />1 x holder