Features:1. It is used to point at any desired target on projection screen, video, etc.2. It can be used for presentation, teaching indicator, etc.3. Across the sky, leading you to find the stars in the clear nights.4. Lightweight, suitable for putting in your bag or handbags, easy and convenient to bring.5. This high quality laser pointer adopts the latest technology optics and microelectronics.6. Press-button switch at the bottom, no need to keep holding when use it.7. Designed with purple color light, which is easier for you to find the target and outlight the key point.8. Designed with a hang rope, convenient to bring and you don't need to worry about losing it.Specifications:1. Surface: anodic oxidation2. Size: 157 x 23 mm3. Beam style: Continuous line.4. Power supply :1x18650/ 16340 Li-ion Battery. (Not Included Battery)5. Wave length: 532nm6. Laser range: 200~5000m7. Laser color: purple8.Type of focusing: Adjustable9. Body color: Black10. Working voltage:DC3.0-3.7V.11. Preheat time: < 3 seconds.12.Theoutputpower:<5MWWarnings:1. Avoid direct eye exposure to laser beam -- exposure to the eye can cause permanent damage.2. The laser is bright even in normal temperatures and daylight, so it is recommended to limit it to 30 seconds or less per use to avoid heat buildup.3. Please keep this out of the reach of children.4. When not in use, it is always a good idea to remove the battery -- it is is a good way to ensure children do not have access to it.5. In some countries, laser pointers such as this may be illegal to own and/or use (especially the higher powered ones). Therefore, by purchasing these products YOU (the customer) accept all responsibly and liability to determine and fulfill the requirements and limitations of use or resale of these products in accordance with your country's laws and regulations. In the event of resale, you also agree to include this notation in the , so that any potential buyer can also make an informed purchasing decision.Package included:1 x Laser PointerNotice 1.Please allow 1-3 error dueto manual measurement. Please make sure you do notmind before you bid. 2.The colors may havedifferent as the difference display, please understand. Because of theangle and light, the real object may be slightly different from the picture, Hopeyou can understand us!