Here we would like to recommend this LT-5MW 405nm Waterproof Purple Laser Pointer Pen to you. Its focus is adjustable to suit various conditions， thus very practical for both indoor and outdoor circumstances. Moreover， it has an up-market appearance and lightweight， providing great portability. Use the laser pointer to point at any desired targets on projection screens， video monitors， and presentation graphics It features high power， efficient and waterproof. It can also be used as a lighter to ignite cigarettes and firecrackers for instance，come to order one assoon aspossible!                                    Features             Can light matches after adjusting focus<br> Powerful and bright enough to point long distance targets<br> Waterproof， with good heat dissipation effect<br> With bright and strong light beam<br> Turn it off after using it  for continuous 30 seconds in summer to ensure a longer lifespan<br> Simply press the button to activate the laser pointer and release it to deactivate   <br>                                                            Specifications             Key Words     Purple Laser Beam    <br> Light Color     Purple    <br> Body Color     Silver    <br> Material     Aluminum    <br> Surface Treatment     Anodic Oxide    <br> Wave Length     405nm    <br> Voltage     DC 3V-3.7V    <br> Output Power     5mw    <br> Perfect Working Environment     15~35°    <br> Battery     1 x 18650 Battery (Not Included)    <br> Waterproof     Yes    <br> Adjustable Focal     Yes    <br> Switch Location     Tailcap    <br> Strap/Clip     Strap Included    <br> Dimensions     (5.91 x 0.98 x 0.98)" / (15 x 2.5 x 2.5)cm (L x W x H)    <br> Weight     4.94oz / 140g       <br>                                                             Package Includes            1 x Laser Pointer Pen<br>