nm Red Beam Aerometal Handheld Adjustable Focus Laser Pointer、 Built-in Laser Improve Heat Sink Module<br>Highlights<br>1. Built-in laser module hard to improve cooling devices、 circuit board protection design collection (good for the domestic transformation of the current laser circuit board defect conducted)<br>2. Spot size: spot size can be adjusted freely<br>3. Focus: Focus adjustable focus able burning paper cutting can point matches<br>4. Heat power produced naturally large、 pro continuous light in the summer about 30 seconds off a little longer to open、 is conducive to longer product life! Gave 5 in 1 pattern head.<br><br>Functions<br>1. Teacher / lecturer - for classroom teaching、 it is like a pointer infinite、 at any corner of the classroom you can easily refer to the planning board and be absolutely an assistant for teachers.<br>2. Business person / Conference Speaker - product demonstrations and meetings explained、 let your speech become capability and with customers be more relaxed and natural.<br>3. Museum / Exhibition / tour guide - When you are in the face of tentacle difficult and do not know what the objectives of the beam、 it can help you indicate target easily and accurately<br>4. Field travelers / explorers - for outdoor adventure、 indicating distant targets and a distress signal issued. It is the preferred equipment to Make your trip more interesting for outdoor activities.<br>5. Astronomy enthusiasts -