Powered by high-capacity rechargeable 18650 battery， this 5mW Extension-Type Focus Purple Dot Pattern Facula Laser Pointer Pen with 18650 Rechargeable Battery is low power consumption and environmental friendly. It can produce purple dot light while focusing. What is more， the stretch focus makes you convenient to use this laser pointer pen. The comfortable pen appearance is easy and soft to hold. So you can hold it for long lasting time. Under the help of this laser pointer pen， you can show the main point you want to highlight directly and perfectly. Therefore， this laser pointer pen is an excellent assistant for you. You will be satisfied with this laser pointer pen.                                    Features            Powered by high-capacity battery， it is power savingProduce purple dot lightIt is extension-typeMade of high quality material， so it is enough durable for long time usingThe laser can be seem as far as the eye can seePower saving， compact and reliableSimply press the button to activate the laser pointer pen and release it to deactivateLightweight and handy design， it is very convenient to put in bags or pocketsIt’s more convenience that use laser to point to the target instead of handsPoint at any desired targets on projection screens， video monitors， and presentation graphicsPerfect for teachers， professors， doctors， managers， engineers and so on                                                            Specifications             Output Power     5mW    <br> Light Color     Purple    <br> Wavelength     405nm    <br> Body Color     Silver    <br> Switch Type     Click    <br> Switch Location     Bottom    <br> Power Supply     1*18650 Battery    <br> Weight     9.24 oz / 262 g    <br> Dimensions     5.71 x 0.94" / 14.5 x 2.4 cm (L x Dia)    <br> Focus     Yes     <br>                                                             Package Includes            1 x Laser Pointer Pen<br>1 x Battery Charger<br>1 x 18650 Battery<br>