Specifications:It will shoot a single beam light.Press the push button to turn it on, release the push button to shut if off automatically.It will be used to point at any desired targets on projection screens, video monitors, and presentation graphics.Also can be used for forensics, illumination, indicating, alignment, sky pointing (astronomy) or just being cool.Type: Laser Pointer PenQuantity: 3 PcsMax. Output Power: 5mWRange in Darkness: More than 1000mPower Supply: 2 x AAA Batteries (Not Included)Output Mode: Constant WaveWorking Voltage: DC 3.0VTrigger Voltage: DC 2.8VTechnical Parameter: Fixed Focus, Dot Facula, Continuous OutputFeatures: Useful, Portable, Easy to Use, Pen ShapeWave Length:Green Laser: 532nmPurple Laser: 405nmRed Laser: 650nmSize: 14mm x 160mm/0.55" x 6.30" (Approx.)Notes:Please don't shoot the light to eyes, skin of human or animal.Please take out the batteries when you don't use it, and keep it away from kids.We suggest the continuous illumining use should be less than 1 minute, in case of the excessive heat influence the service life.Due to the light and screen setting difference, the item's color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:3 x Laser Pointer Pens (3 Different Colors)